adding gitignore
Updated ViewController file and communication between ViewController and GridView to reflect rubric comments.
Moved  offset calculations to helper functions

-added wrappers for horizontal and vertical offset
-added underlying math function
Finished formatting the math for offsets

-changed magic numbers to constants
-formatting of the math if separate in separate functions
Fixed formatting of comments. Finished assignment 5
Merge pull request #1 from kateaplin/kate_dev

Kate dev
Disabled initial cells, set cell text to different color. Tested: iOS Simulator
Create gridModel class.
Wrote GridModel, copying the initial grid from view controller. Wrote the rules for checking row, column and block consistency for a given value against a given grid, not yet tested.
Created NumPadView class.
Implemented NumPadView and linking the GridModel with the ViewController, basic functionality works. Tested: iOS Simulator.
Added image creation utility class.
Fixed style - asterix with name, not type for pointers.
Added unit testing for Grid Model.
Merge pull request #2 from kateaplin/gridModel

Grid model
Changing name of function to be consistent.
Merge pull request #5 from kateaplin/nameChange

Name change