added base file for models
added properties to AddItemView. Added init functions
switching to creating views in controller. setup initial views for AddItemViewController
added margins for views in add item view
added UITextView for item description and UILabel for title
removed view classes. added initial button handling.
completed basic login page
created navigation between view controllers. changed addItemViewController to ItemViewController
updated ux of login view
updated ux for itemViewController
updated functionality of verify button. added uialertview for when item name or location is left empty