changed string variable to log on on menu list, created log out method, called method on selection from menu
added method call to return to log in screen upon sign out:
added limits to user name and password
fixed button size in log in screen
updated layout for adding a class
added toast to add class
class list view loading via interface
stuff so much stuff
created runnable methods for list views in class and parse student assignments and interfaces
assignment detail working
list view working in assignment detail with student name
changed method for class listing into runnable
stuff
color change visible on student view for class detail
stuff
refactoring log in
log in working
student list
 refactoring
refactoring