diff --git a/prediction_io/movierecommender_lumen/lumen/composer.lock b/prediction_io/movierecommender_lumen/lumen/composer.lock
index 8cae55c..6005413 100644
--- a/prediction_io/movierecommender_lumen/lumen/composer.lock
+++ b/prediction_io/movierecommender_lumen/lumen/composer.lock
@@ -1,10 +1,10 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at http://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
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@@ -60,7 +60,7 @@
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-            "time": "2015-02-10 06:19:18"
+            "time": "2015-02-10T06:19:18+00:00"
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@@ -127,7 +127,7 @@
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-            "time": "2014-12-20 21:24:13"
+            "time": "2014-12-20T21:24:13+00:00"
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@@ -182,7 +182,7 @@
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-            "time": "2015-04-09 09:19:23"
+            "time": "2015-04-09T09:19:23+00:00"
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@@ -277,37 +277,32 @@
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-            "time": "2015-03-18 18:23:50"
+            "time": "2015-03-18T18:23:50+00:00"
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@@ -335,20 +330,24 @@
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@@ -366,7 +365,7 @@
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@@ -386,7 +385,12 @@
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+                "source": "https://github.com/guzzle/RingPHP/tree/1.1.1"
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@@ -436,7 +440,12 @@
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+            "support": {
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@@ -486,7 +495,7 @@
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@@ -531,7 +540,7 @@
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             "homepage": "http://laravel.com",
-            "time": "2015-03-07 15:07:05"
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@@ -581,7 +590,7 @@
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@@ -625,7 +634,7 @@
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@@ -676,7 +685,7 @@
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             "homepage": "http://laravel.com",
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@@ -719,7 +728,7 @@
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             "homepage": "http://laravel.com",
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@@ -760,7 +769,7 @@
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@@ -806,7 +815,7 @@
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-            "time": "2015-03-26 16:16:33"
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@@ -864,7 +873,7 @@
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@@ -910,7 +919,7 @@
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             "homepage": "http://laravel.com",
-            "time": "2015-03-26 16:16:33"
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@@ -955,7 +964,7 @@
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             "homepage": "http://laravel.com",
-            "time": "2015-03-26 16:16:33"
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@@ -1005,7 +1014,7 @@
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-            "time": "2015-03-26 10:19:03"
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@@ -1050,7 +1059,7 @@
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             "homepage": "http://laravel.com",
-            "time": "2015-03-25 16:42:17"
+            "time": "2015-03-25T16:42:17+00:00"
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@@ -1096,7 +1105,7 @@
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             "homepage": "http://laravel.com",
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+            "time": "2015-03-25T15:58:31+00:00"
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@@ -1140,7 +1149,7 @@
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             "homepage": "http://laravel.com",
-            "time": "2015-03-26 17:28:59"
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@@ -1184,7 +1193,7 @@
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             "homepage": "http://laravel.com",
-            "time": "2015-03-07 15:07:05"
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@@ -1242,7 +1251,7 @@
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             "homepage": "http://laravel.com",
-            "time": "2015-04-03 01:58:54"
+            "time": "2015-04-03T01:58:54+00:00"
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@@ -1292,7 +1301,7 @@
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             "homepage": "http://laravel.com",
-            "time": "2015-04-03 01:57:21"
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@@ -1344,7 +1353,7 @@
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             "homepage": "http://laravel.com",
-            "time": "2015-03-27 14:49:11"
+            "time": "2015-03-27T14:49:11+00:00"
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@@ -1389,7 +1398,7 @@
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-            "time": "2015-03-26 16:06:10"
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@@ -1439,7 +1448,7 @@
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-            "time": "2015-03-26 17:28:59"
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@@ -1485,7 +1494,7 @@
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@@ -1527,7 +1536,7 @@
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@@ -1615,7 +1624,7 @@
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@@ -1698,7 +1707,7 @@
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+            "time": "2015-03-29T14:01:43+00:00"
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@@ -1771,7 +1780,7 @@
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@@ -1815,7 +1824,7 @@
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@@ -1862,7 +1871,7 @@
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@@ -1905,7 +1914,7 @@
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@@ -1951,7 +1960,7 @@
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@@ -2002,7 +2011,7 @@
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@@ -2040,38 +2049,36 @@
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@@ -2080,11 +2087,45 @@
             "authors": [
                 {
                     "name": "Jan Sorgalla",
-                    "email": "jsorgalla@googlemail.com"
+                    "email": "jsorgalla@gmail.com",
+                    "homepage": "https://sorgalla.com/"
+                },
+                {
+                    "name": "Christian Lück",
+                    "email": "christian@clue.engineering",
+                    "homepage": "https://clue.engineering/"
+                },
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+                    "name": "Cees-Jan Kiewiet",
+                    "email": "reactphp@ceesjankiewiet.nl",
+                    "homepage": "https://wyrihaximus.net/"
+                },
+                {
+                    "name": "Chris Boden",
+                    "email": "cboden@gmail.com",
+                    "homepage": "https://cboden.dev/"
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             ],
             "description": "A lightweight implementation of CommonJS Promises/A for PHP",
-            "time": "2014-12-30 13:32:42"
+            "keywords": [
+                "promise",
+                "promises"
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+                    "url": "https://github.com/WyriHaximus",
+                    "type": "github"
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@@ -2142,7 +2183,7 @@
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-            "time": "2015-03-30 15:54:10"
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-            "time": "2015-03-22 16:55:57"
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-            "time": "2015-03-30 15:54:10"
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@@ -2444,7 +2485,7 @@
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-            "time": "2015-04-01 16:55:26"
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@@ -2494,7 +2535,7 @@
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-            "time": "2015-03-30 15:54:10"
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@@ -2558,7 +2599,7 @@
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             "homepage": "http://symfony.com",
-            "time": "2015-03-30 15:54:10"
+            "time": "2015-03-30T15:54:10+00:00"
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@@ -2617,7 +2658,7 @@
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-            "time": "2015-03-30 15:54:10"
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@@ -2677,7 +2718,7 @@
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-            "time": "2015-03-31 08:12:29"
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@@ -2728,7 +2769,7 @@
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@@ -2784,7 +2825,7 @@
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@@ -2833,7 +2874,7 @@
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@@ -2893,7 +2934,7 @@
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         {
             "name": "phpunit/php-code-coverage",
@@ -2955,7 +2996,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2015-04-11 04:35:00"
+            "time": "2015-04-11T04:35:00+00:00"
         },
         {
             "name": "phpunit/php-file-iterator",
@@ -3002,7 +3043,7 @@
                 "filesystem",
                 "iterator"
             ],
-            "time": "2015-04-02 05:19:05"
+            "time": "2015-04-02T05:19:05+00:00"
         },
         {
             "name": "phpunit/php-text-template",
@@ -3046,7 +3087,7 @@
             "keywords": [
                 "template"
             ],
-            "time": "2014-01-30 17:20:04"
+            "time": "2014-01-30T17:20:04+00:00"
         },
         {
             "name": "phpunit/php-timer",
@@ -3090,7 +3131,7 @@
             "keywords": [
                 "timer"
             ],
-            "time": "2013-08-02 07:42:54"
+            "time": "2013-08-02T07:42:54+00:00"
         },
         {
             "name": "phpunit/php-token-stream",
@@ -3139,7 +3180,7 @@
             "keywords": [
                 "tokenizer"
             ],
-            "time": "2015-04-08 04:46:07"
+            "time": "2015-04-08T04:46:07+00:00"
         },
         {
             "name": "phpunit/phpunit",
@@ -3211,7 +3252,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2015-04-11 05:23:21"
+            "time": "2015-04-11T05:23:21+00:00"
         },
         {
             "name": "phpunit/phpunit-mock-objects",
@@ -3266,7 +3307,7 @@
                 "mock",
                 "xunit"
             ],
-            "time": "2015-04-02 05:36:41"
+            "time": "2015-04-02T05:36:41+00:00"
         },
         {
             "name": "sebastian/comparator",
@@ -3330,7 +3371,7 @@
                 "compare",
                 "equality"
             ],
-            "time": "2015-01-29 16:28:08"
+            "time": "2015-01-29T16:28:08+00:00"
         },
         {
             "name": "sebastian/diff",
@@ -3382,7 +3423,7 @@
             "keywords": [
                 "diff"
             ],
-            "time": "2015-02-22 15:13:53"
+            "time": "2015-02-22T15:13:53+00:00"
         },
         {
             "name": "sebastian/environment",
@@ -3432,7 +3473,7 @@
                 "environment",
                 "hhvm"
             ],
-            "time": "2015-01-01 10:01:08"
+            "time": "2015-01-01T10:01:08+00:00"
         },
         {
             "name": "sebastian/exporter",
@@ -3498,7 +3539,7 @@
                 "export",
                 "exporter"
             ],
-            "time": "2015-01-27 07:23:06"
+            "time": "2015-01-27T07:23:06+00:00"
         },
         {
             "name": "sebastian/global-state",
@@ -3549,7 +3590,7 @@
             "keywords": [
                 "global state"
             ],
-            "time": "2014-10-06 09:23:50"
+            "time": "2014-10-06T09:23:50+00:00"
         },
         {
             "name": "sebastian/recursion-context",
@@ -3602,7 +3643,7 @@
             ],
             "description": "Provides functionality to recursively process PHP variables",
             "homepage": "http://www.github.com/sebastianbergmann/recursion-context",
-            "time": "2015-01-24 09:48:32"
+            "time": "2015-01-24T09:48:32+00:00"
         },
         {
             "name": "sebastian/version",
@@ -3637,7 +3678,7 @@
             ],
             "description": "Library that helps with managing the version number of Git-hosted PHP projects",
             "homepage": "https://github.com/sebastianbergmann/version",
-            "time": "2015-02-24 06:35:25"
+            "time": "2015-02-24T06:35:25+00:00"
         },
         {
             "name": "symfony/yaml",
@@ -3687,7 +3728,7 @@
             ],
             "description": "Symfony Yaml Component",
             "homepage": "http://symfony.com",
-            "time": "2015-03-30 15:54:10"
+            "time": "2015-03-30T15:54:10+00:00"
         }
     ],
     "aliases": [],
@@ -3696,5 +3737,6 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": [],
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.3.0"
 }