Working copy from master
Added checks to hourly rate and subject inputs
Merge remote-tracking branch 'origin/master' into JoyDev3

Conflicts:
	UberTutorAndroid/app/src/main/java/ee461l/ubertutorandroid/TutorsMapActivity.java
	UberTutorAndroid/app/src/main/java/ee461l/ubertutorandroid/ViewProfileActivity.java
Added save password and sharedpref for introActivity login
Merge remote-tracking branch 'origin/JoyDev3'