add openh264 xcode and adjust processing xcode project
add BasicInitialize UT and some fix in create/destroy encoder in the existing interface test
Merge pull request #1145 from sijchen/interfaceUT11

add BasicInitialize UT and fix in existing interface test
Merge pull request #1144 from syureyi/openh264xcode

add openh264 xcode and adjust processing xcode project
Abort directly on errors in the unit test in run_Test.sh

Currently it runs all four unit test builds, and an error in any
of the earlier three ones will be missed as long as the fourth one
succeeds.
Merge pull request #1154 from mstorsjo/runtest-abort-errors

Abort directly on errors in the unit test in run_Test.sh
Merge remote-tracking branch 'upstream/master' into travis.osx