Ranged downloads for webmp (only when file can be access directly for now)

Code based on http://tpeczek.codeplex.com/
Updated copyright header
Add range downloads also when connecting to WSS
Performance improvements to ranged downloads
Remove FileStreamResult (not necessary)

Rename WSSFileResult to RangedWSSResult
Merge branch 'master' into webmp-ranged-downloads
Small code cleanup
-Added method for clearing playlist and adding items to playlist
-Fixed typo and condition in AddPlaylistItemToPlaylist
FixedcCopy/paste error in last commit
Merge pull request #402 from johanj/master

Added method for clearing and adding items to playlist, fixed type and condition for add playlistitem method
MPMusic: Write playlist header in CreatePlaylist()
Change INNER JOIN to LEFT JOIN for fetching fanart for a series (so that even series without any fanart can be retrieved)
Merge pull request #403 from pstumpe/master

MPTVSeries: correctly handle series without any fanart
Update TvControl binaries and Gentle
Save selected log file and auto-scrolling state as user setting and remember next time the tab is shown
Add Common.Utils.dll to installer
Update nuget packages of zxing and taskbarnotifications
Merge branch 'master' into webmp-ranged-downloads
Merge branch 'configurator-logtab-remembersettings' into release_0.6
Merge branch 'webmp-ranged-downloads' into release_0.6