Add multi device support to the SDK

Change-Id: Ie92347d6149a8d64ed6995bc316151220aed3891
Add OpenSpatial SDK v0.4 to the release directory

Change-Id: Id591df4ef8d3ff410419b65398aa540f74a6574d
Update example app to use gestures

Change-Id: I9ac68f4d49dad16f5baa92f27ae6ea65b71fcdf7