Parse audio tracks bitrate and store in mediainfo DB

From https://github.com/ps3mediaserver/ps3mediaserver/commit/45af89d5d2d16f345f3be800b4155e719f83ecdc
Disable AC3 remux for stereo 384 kbits tracks and PS3 renderer

From https://github.com/ps3mediaserver/ps3mediaserver/commit/1349c0deddd0d15bbb3928a820b91379fbfcde81
Updated changelog
Catch unparsable bitrate

From https://github.com/ps3mediaserver/ps3mediaserver/commit/8cc5e0543cd60b5e88b244162672a603fde36abf
Merge pull request #3 from UniversalMediaServer/Audio-bitrate

Parse audio tracks bitrate and store in mediainfo DB
Merge pull request #4 from UniversalMediaServer/AC3-384-PS3-Workaround

Disable AC3 remux for stereo 384 kbits tracks and PS3 renderer
Ignore AviSynth installation if installer is run in silent mode
Merge branch 'master' of github.com:UniversalMediaServer/UniversalMediaServer
Use StringBuilder instead of StringBuffer
Removed unused parameter from wrapException
Updated changelog
Revert updated changelog

Line endings mixup
Try again to revert changelog...
Updated changelog
Fixes for OSX build of MPlayer

From https://github.com/ps3mediaserver/ps3mediaserver/commit/b4fc371f5682bb3c1864b91285ca3175f81e2c17
Fixed duplicated code

From https://github.com/ps3mediaserver/ps3mediaserver/pull/57
Continued previous revision
Allow PMS_HOME with spaces in path by quoting variable

Fixes PMS #1451: https://code.google.com/p/ps3mediaserver/issues/detail?id=1451

From https://github.com/ps3mediaserver/ps3mediaserver/commit/0de2621ecdb72e980595827d80906efc40c713c9
Updated changelog
Fixed NPE when videos without audio are played