Upgrade Android Build Tools and Gradle Wrapper
Add content button
Add content button background has a gradient
Upgrade to Android SDK 21 Lollipop
Drop shadow effect on plus button
Compose view's top bar
Use send icon instead of label
Add portrait to compose view
Portrait badge for compose view
Add user name to compose view
Source formatting
Show keyboard in compose view
Compose edit text look and feel
Back button press changes labels' opacities
Close compose view after message is posted