Switch to fw2.4

[versatran01]

fw2.4 for some reason switched to using nodelets. Could probably refactor driver to inherit and reuse some of the code to avoid duplication.

[satyajitghana]

which commit are you referring to? I tried several and nothing seemed to work. somewhere down the line ouster-ros changed the topics from os_node/something to ouster/something and its just chaos because of that

[satyajitghana]

Nevermind i did roslaunch ouster_decoder decoder.launch driver_ns:=/ouster and it works now, also i ran the driver separately, not using the driver.launch included in ouster_decoder