ffmpeg: Bump to version 2.1
Don't set TIME_UNKNOWN on packet withy STARTTIME
Fix DBus issues: popcornmix/omxplayer#59 and popcornmix/omxplayer#97
Uses an adapted version of fcarlier fix.
Fix an issue with LD_LIBRARY_PATH. If LD_LIBRARY_PATH is empty it
includes the current directory due the calculated variable ends
with ":". Avoid that not adding LD_LIBRARY_PATH if not set.

Issue discovered by popcornmix who sent me this link:
http://stick.gk2.sk/2009/10/wrong-usage-of-ld_library_path/
Merge pull request #103 from skgsergio/master

Fix DBus issues with the launcher script and fix LD_LIBRARY_PATH.
Support sample rates below 8kHz and round up channels like xbmc
Fix for avi files hanging when seeking
always look for omxplayer.bin in the same directory as the sh script
check for an ffmpeg_compiled in that dir, and selectively use that if found, then fallback to /usr/lib/omxplayer
Merge pull request #121 from cleverca22/master

modify omxplayer sh script do always do the right thing
Fix for aspect ratio with non-square pixel modes.
See: https://github.com/popcornmix/omxplayer/issues/33
Merge my omxplayer launch script.
Merge pull request #122 from skgsergio/new-launcher-script

Merge my omxplayer launch script.
Wait for sufficient OMX buffer space to become available
Fix build with boost 1.55.0. Thanks agherzan
Fix for aspect ratio when not specified in file, and tidy reporting of aspect ratio
Don't use 0.0 as base time for seeking
Merge pull request #126 from torarin/seektwice

Fix seeking in rapid succession
Fixed linking issues by reordering linking options.
Fixed stripping of binaries.
Modified distribution generation so that tarball does not contain "omxplayer-dist" directory in path.
Merge pull request #128 from JontomXire/push_branch

Fixed linking issues by reordering linking options.
Add synchronisation to hdmi mode change so aspect ratio read back is current