got android studio running with few modifications
added login activity template
register button starts the "real" app
log-in screen is the LAUNCHER activity
implemented sharedpreferences to stay logged in when once done
added log out menu item on MainActivity.java
added regex string to control if email address is valid
changed from email address to username
added RegisterActivity.java
added functionality to register button in Login Screen
built minimal layout in RegisterActivity.java
added jackson library and changed gradle build settings
not using jackson anymore
finished login + registration activity except for server communication
finished login + registration activity except for server communication part2
coded own version of REST Client, changed function calls in login&register activities
changed login and register authentication,
fixed stay logged in
enabled waiting animation
resolved a few conflicts (iml, gradle and local.properties)
Merge branch 'master' into rick

Conflicts:
	Project/BikeChallenge/app/app.iml
	Project/BikeChallenge/app/src/main/AndroidManifest.xml
	Project/BikeChallenge/app/src/main/java/at/xidev/bikechallenge/app/MainActivity.java
	Project/BikeChallenge/gradle/gradle.iml
Merge pull request #36 from XiDevelopment/rick

Login and Register Activities