CI: OSX - export cef version so we can use it elsewhere

UI: Don't exit on unknown command line arguments

OBS Browser Source uses command line arguments for flags. Exiting on
command line arguments that are unknown to OBS prevent's that
functionality from working.

CI: OSX - Use bash variable for CEF version

CI: OSX - Update to CEF 2987

enc-amf: Update to 1.4.3.11

Thanks to @notr1ch for the PR and for the guy on Forums reporting the Simple Mode problem.

CI: OSX - Include branch in pkg

CI: Deploy on tags and master branch

CI: Add boolean arg parser to OSX

CI: Fix true / false on stable builds

UI, enc-amf: Update AMD Encoder

CI: OSX Set builds to stable on tagged builds

Due to the default value assigned to AMF.H264.VBVBuffer.Strictness and AMF.H264.Version, the config upgrade code ran every time someone tried to use simple mode. That caused the AMF.H264.VBVBuffer.Strictness value to always be stuck at 100, which is wrong for streaming and recording.

As recommended by cg2121, attack is increased to 500ms, and release is
increased to 1000ms.

Travis CI IRC Notifications fixing and reformatting

CI: OSX - Brew install jack

CI: Possibly fix OSX cert import issue