Added search and login screens
Merge branch 'master' of https://github.com/sunnydroid/PetSitterFinder

Conflicts:
	AndroidManifest.xml
	res/layout/activity_login.xml
	res/values/strings.xml
	src/com/petsitterfinder/PetSitterFinderApplication.java
	src/com/petsitterfinder/activities/LoginActivity.java
	src/com/petsitterfinder/activities/ProfileActivity.java
	src/com/petsitterfinder/datamodel/PetSitter.java