Fix bug in H.264 codec detection

When detecting if media is H.264 using getCodecV(), sometimes the
function return more than "h264" (in my tests, it returned "h264
(High)"), and isH264() is already here to help (and I also did a little
fix in it), so I used it instead using getCodecV() directly.
Accept web audio in FFmpeg Audio
Always send a valid mime type
Implement playlist as format + add web support to PlaylistFolder
Playlist fixes
Fix Timeseek Detection

The pattern to detect the timeseek was incorrect to detect the decimal
part of seconds (because period is always literal inside brackets, so
don't need to be escaped).
Resume thumbnail generation

Let resume files to have their own thumbnail, based on resume position.
Merge pull request #274 from UniversalMediaServer/playlist

Playlist
Tweak getPlaylist()
New Media folders that have no new files are now correctly hidden when the "Hide Empty Folders" option is selected.
Merge pull request #275 from tdcosta100/fix-timeseek-parsing

Fix Timeseek Detection
Merge pull request #277 from tdcosta100/resume-thumbnail-generation

Resume thumbnail generation
sync
Merge fixes
Merge pull request #286 from jpeyper/new-media-fix

New Media folders that have no new files are now correctly hidden
looks good
Fix pidverify to cope with win
Merge branch 'master' of github.com:UniversalMediaServer/UniversalMediaServer