Replaced deprecated methods in ofAVFoundationPlayer.
Won't compile on deprecated base method on Xcode 6.
Fix internal call to deprecated method name.
Merge pull request #3337 from bakercp/bugfix-load-deprecation

Won't compile on deprecated base method on Xcode 6.
Merge pull request #3329 from prisonerjohn/hotfix-avplayerupdate

Replaced deprecated methods in ofAVFoundationPlayer.
Merge branch 'master' of git://github.com/openframeworks/openFrameworks into documentation-baseclasses
Additional base class documentation.