Added onclicklisteners for buttons in PetActivity
Added onclicklisteners for buttons in ManageAccountActiity
Added onclicklisteners for buttons in InventoryActivity
Merge pull request #28 from 3olcin/master

added onclicklisteners for nav buttons
Merge pull request #27 from bahaa360/master

Login Adjustments and Finishing touches
edited page titles in strings
created onclicklistener and activity for nickname
Merge pull request #29 from bahaa360/master

Toasting and Error Checking for CreateAccount
created layout and nicknameActivity
Merge pull request #30 from 3olcin/master

NicknameActivity