add thirdparty/rapidjson#14

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qinzuoyan wants to merge 5 commits intochen3feng:masterfrom

qinzuoyan:master

Commits on Apr 9, 2015

add thirdparty/rapidjson
qinzuoyan
committed

Commits on Apr 10, 2015

add thirdparty/rocksdb
qinzuoyan
committed

Commits on Apr 12, 2015

add thirdparty/hiredis
qinzuoyan
committed

Commits on Apr 21, 2015