Merge pull request #70 from andyque/v3

remove protobuf-lite
recompile libcurl without -mthumb optino
Merge pull request #71 from andyque/recompileCURL

recompile libcurl without -mthumb option
added cjson
moved to  lua/cjson
Merge pull request #73 from SunLightJuly/add_cjson

add cjson