added retrofit dependency
Added retrofit API layer for offers
created bare Offer Parcelable
Added retrofit logic for activity, renamed classes and getOffers method
Added offer list item for listview
Merge pull request #1 from JulianCurrie/retrofit_implementation

Retrofit implementation
Created objects that map directly with JSON keys for retrofit compatibility
Removed buffered reader logic, no longer needed after gson mapping
changed callback type
Merge pull request #2 from JulianCurrie/create_retrofit_objects

Create retrofit objects
Added offerListAdapter
Hooked the adapter up with the listview
Merge pull request #3 from JulianCurrie/setup_list_adapter

Setup list adapter
Using supplied list of offers instead of offerList Arraylist, set the adapter in Success callback
Use standard List, set attachtoRoot false
Added picasso lib and code to load image view from url
Changed list item layout to be Linear. added padding
removed resizing of images. looked stretch
Merge pull request #4 from JulianCurrie/populate_listview

Populate listview
Added offer detail dialog fragment and added logic to show from offer Activity