Added license info to project, updated readme
Get duration only once

We don’t need to get duration every seconds. (to reduce network load)
Fixed one of the bugs with apps relaunching from the app list. (Fixes ConnectSDK/Connect-SDK-Android#16)
Updated the sampler and added the join button.
Fixed some of the web app launching.
Merge pull request #7 from snikk/sdk_1.2.1

Sdk 1.2.1 updates