Change desktop launcher name to cinelerra-cv
Rename INCLUDES to AM_CPPFLAGS in Makefile.am to avoid warning.
Change 'char *' to 'const char *' in Mutex and Condition classes to get rid of warnings.

This reduce the amount of warnings and bring the code closer to HV 4.5.
Change 'char *' to 'const char *' in XMLTag class to get rid of warnings.

This reduce the amount of warnings and bring the code closer to HV 4.5.
Merge branch 'master' into from-cinelerra-hv-4.5-plugin-findobject
Include all needed files in tarball.