Update libs
Working copy from master
GCM receiving works
Student request communication working
Student now receives a response from the tutor
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
Registration: clear text
Tutor/Student transitions improved
Merge branch 'master' of https://github.com/mpu42/UberTutor

Conflicts:
	UberTutorAndroid/app/src/main/res/layout/new_account_page.xml
Added save password and sharedpref for introActivity login
Normalized buttons
Merge branch 'master' of https://github.com/mpu42/UberTutor
Begin handshake chat stuff
Merge branch 'master' of https://github.com/mpu42/UberTutor
Merge remote-tracking branch 'origin/JoyDev3'
Student<->Tutor chat implemented
Handshake session start working
Dark theme
Set tutor as unavailable if they accept a student