- added expandable chat graphic
https://github.com/openpeer/opandroid/issues/72
- chat view with back forth conversation
https://github.com/openpeer/opandroid/issues/74
- basic chat activity / adapter
https://github.com/openpeer/opandroid/issues/85
- remove divider between rows
https://github.com/openpeer/opandroid/issues/84
Merge branch '20140204-federated-android' of https://github.com/openpeer/opandroid into 20140204-federated-android

# By Bojan Lazic (1) and Vladimir Morosev (1)
# Via Vladimir Morosev
* '20140204-federated-android' of https://github.com/openpeer/opandroid:
  - Xamarin media test application
  Added initial Media engine wrapper. JNI wire for testing added. copy script updated to copy jni directory as well