Add crashlytics
Remove unused methods
Add proguard rules
Add newrelic

Conflicts:
	app/build.gradle
	app/src/main/java/eu/heiconnect/android/ConnectApplication.java
Move crashlytics repository
Add crashlytics gen file to gitignore
Add more details on the sync state
Remove placeholder data on layouts
Add logout action item
Update play store documents
Add new relic proguard rules
Optimize image assets