Added mp4source code r1109.
Necessary changes to mp4parser source code to read the art cover and
custom box parsing.
MP4Muxer using new mp4parser source code.
Patch to AppleCoverBox.
changelog - improved mp4parser.
Missing files due to .gitignore rule.
Merge branch 'master' of github.com:frostwire/frostwire-desktop
Minor compilation fix with java 8.
Merged frostwire-common changes