Adding DLC system.
adding nginx local DLC webserver
adding minimum manifests for DLC test.
adding loading scene and UI ( DLC is still disabled in manifest.json ).
making DLC work on Android.
removed gdb.setup which shouldnt be in repository.
small IDEA changes.
now downloading Helloworld.png from local webserver for DLC.
fixing DLC bugs on Android.
Fixed bug where recently downloaded file was ignored because original file was already in pathCache.
added batch file to easily stop nginx
removing unneeded headers.
fixed build on linux. not running yet.
cleaning up old copied headers.
splitting downloading in 3 systems.
added libevent, to help us later with curl multithreaded.
Curl Easy is working.
curl Multi is not implemented
fixing resource path issues on linux
making nginx executable on linux. DLC tested and working on ubuntu64
improved curlDL by creating file as late as possible.
curlmultiDL still not working.
improvements in CurlDL.
CurlMultiDL is working now. But we need more tests and cleanup code.
fixing cocos2d-x external to latest.
fixing android build
adding libevent depends. needed for submodule
removing more tests from libevent