updated README
updated to SDK 0.8.1
Merge branch 'master' of github.com:QuickBlox/quickblox-android-sdk
updated snippets
updated Messages sample: added gcm.jar
new sdk android file added, snippets for chat updates
Merge branch 'master' into development

Conflicts:
	snippets/src/com/quickblox/snippets/modules/SnippetsChat.java
	snippets/src/com/quickblox/snippets/modules/SnippetsCustomObjects.java