Fixes inconsistent synchronization in RTPSourceStream which could lead to unexpected behavior. Fixes warnings.

git-svn-id: https://fmj.svn.sourceforge.net/svnroot/fmj/fmj@17 799b4810-d841-4bb4-a54b-9156a0c3e4cd
Fixes a potential problem with the way a Buffer's data is copied.

git-svn-id: https://fmj.svn.sourceforge.net/svnroot/fmj/fmj@18 799b4810-d841-4bb4-a54b-9156a0c3e4cd
Add gitignore file