Attach overlay views to new render code and added video disabled/enabled events OPENTOK-15584
Added background support to Multi Party Call app
Merge pull request #19 from bsrao/OPENTOK-15584

Attach overlay views to new render code and added video disabled/enabled...
Merge pull request #18 from wobbals/OPENTOK-15986

Added background support to Multi Party Call app
MODIFY Remove TokBox logo from UI hierarchy
Merge pull request #20 from wobbals/OPENTOK-15785

MODIFY Remove TokBox logo from UI hierarchy
Merge branch 'develop' of github.com:opentok/opentok-ios-sdk-samples into develop
fix for metallic sounding play out audio.
Merge branch 'develop' of github.com:SteveMcFarlin/opentok-ios-sdk-samples into develop

Conflicts:
	5.Multi-Party-Call/Multi-Party-Call/ViewController.m