dvdplayer: fixes for ff

drop useless setting hw/sw decoding

[mmalrenderer] Fix initialisation of m_format in init_vout

[pvr] Add new pvr.stalker add-on

[pvr] Improve PVR startup time

emulate fputs to fix curl warning

ActiveAE: slightly reduce buffer size

[pictures] SlideShowPicture: fix texels to display only filled part of texture instead of displaying whole texture.

[linux] install UseMultiArch.cmake file

needed for binary addons

[droid;packaging] Remove non-relevant comment

* https://github.com/xbmc/xbmc/commit/e2ee1f12392ab9c03e4b908dac8ca627230e2fc7 bumped the API minimum to 17; NativeActivity was introduced before API 17.

[pictures] SlideShowPicture: fix texels to display only filled part of texture instead of displaying whole texture.

[confluence] update roboto fonts

      beside standard(S), try also DVI(U), VESA(V)

 - try in order S -> U -> V
 - don't add modes with resolution & refresh we alredy have
 - S are preferred (over other types with same XxYxR) because
   they come from EDID(CEA) and do pass requirements
   for proper hdmi audio out

 (this superseeds sam's PR and was rediscussed with
  fritsch on IRC.)

Copyright according to
https://github.com/google/fonts/blob/master/apache/roboto/COPYRIGHT.txt

Renamed NOTICE.txt to LICENCE.txt and updated boilerplating

Roboto-Bold.ttf    - Version 1.00000;2011 -> 2.001150;2014
Roboto-Regular.ttf - Version 1.00000;2011 -> 2.001101;2014

Source https://github.com/google/fonts/tree/master/apache/roboto

This removes the inaccurate seek size calculation which relies on percent and uses seconds instead.
As we need the seek size percent for the GUI seek progress bar this calculation is refactored into our CGUIInfoManager.

[win32] CLog: Do not use FlushFileBuffers after each write to file which...

This bug was introduced in last mmal fixes.
Without the fix software decode fails.

[win32] CLog: Do not use FlushFileBuffers after each write to file which causes unnecessary performance penalties.

[addons] lazy load translated context item label

avoids loading language files when addon instances are created but label never
used (e.g in addon browser)