Added SSL for MySQL connections.
GUIRadioButton: add separate textures for radio image for focus/unfocus states
Use album artist fanart when there is no artist fanart

This is useful especially for albums that are by one main artist but
have some songs featuring other artists, so there may be fanart for "A"
but not "A feat. B".
added: setting to disable keyboard grabbing when in fullscreen on platforms that use SDL on X11, calls SDL_WM_GrabInput(SDL_GRAB_OFF) with the SDL_FULLSCREEN temporarily zero'd, this will make SDL call XUnGrabPointer and XUnGrabKeyboard, allowing window manager keys like printscreen, volume and alt-tab to work
[LangInfo] Use preferred audio/subtitle language also for dvds and blurays.
[LangInfo] Use gui's language for dvd/bluray menus.
changed: Don't allow change of volume amplification with passthrough audio
smartplaylists: use simple WHERE conditions instead of expensive IN statements
smartplaylists: cosmetics in SQL queries
smartplaylists: use SELECT DISTINCT in SQL sub-queries
smartplaylists: replace SQL IN with SQL EXISTS in WHERE conditions
Speedup for opening music song library

Previously, this repeatedly parsed the same URL string over and over again
for every song, each time the list of songs was opened.

Benchmarks for CMusicDatabase::GetSongsByWhere() on a Raspberry Pi with a
library of 4115 songs:

Before patch: 14.5 seconds
After patch:   4.0 seconds
[WIN32] fixed: new packages don't need the download scripts anymore.
[WIN32] changed: provide full boost headers rather than a flavor. Removed unneeded boost libs. Removed unneeded download scripts. Reordered gnutls in package list.
get rid of SCRIPTXXX labels
[lang] update of internal addon language files
[lang] update of core language files
[lang] update of skin.confluence language files
Fix infinite loop while viewing "EPG: Timeline" window

With invalid begin/end times, the for loop in GUIEPGContainer.cpp L#825 (https://github.com/xbmc/xbmc/blob/5f33d290e/xbmc/epg/GUIEPGGridContainer.cpp#L825) loops endlessly, freezing XBMC when the user views the "EPG: Timeline" window. Solve this by adding check for invalid end times.
[rbp/omxplayer] No need for two debug messages per component init