[DOC] update file description
[DEV] move SDK_VERSION from EwolConstants into EwolSurfaceViewGL
[DEV] rename PROJECT_NAME.java to EwolActivity.java; add the method initApkPath; change the activity type to abstract
[DEV] add generation of the EwolConstants header (org_ewol_EwolConstants.h)
[DEV] do not commit the generated header file
[DEV] remove...
[DEV] fixes the compatibility with the java code... not tested...