audiomixer: Add new element based on adder that does synchronized audio mixing
audiomixer: Add simply synchronization test
audiomixer: Add test to the .gitignore file
audiomixer: Don't take channel mask in consideration in mono or stereo

This could cause negotiation to fail.

https://bugzilla.gnome.org/show_bug.cgi?id=708633
aiffparse: fix seeking in push mode
codecparsers: add H.265 HEVC bitstream parser

https://bugzilla.gnome.org/show_bug.cgi?id=708438
videoparsers: add H.265 HEVC video parser element

https://bugzilla.gnome.org/show_bug.cgi?id=708438
win32: add new codecparser API to .def file
camerabin: Make sure video-done is post only when file is closed

Force filesink to null before posting video-done to make sure the
file was closed.

Had to do it from a separate thread to avoid calling state_change from
a sync message handler.

https://bugzilla.gnome.org/show_bug.cgi?id=709373
codecparsers: Remove some unused functions
audiomixer: Remove some racy-ness from the unit test

We might already be EOS when we start the mainloop, so only
set the pipeline to PLAYING from the main loop.
audiomixer: Refactor sync test to be more reusable
audiomixer: Add test for the discont handling
audiomixer: Fix EOS handling if we have some pending data
audiomixer: Add unit test for handling unaligned buffers

That is, buffers that start or end in the middle of an output block.
applemedia: port avfvideosrc to 1.0
configure.ac: detect presence of AVFoundation
avfvideosrc: only enable 1920x1080 preset on iOS
applemedia: enable avfvideosrc if AVFoundation is present
avfvideosrc: dispatch AVFoundation calls synchronously in the main queue