Fixing the glowing cells only for non fixed cells
Removing the solution logic for faster lookup
Clicking on a cell, and editing its value
* jquery logic for editing a cell
* new css class for editing a cell
Better animation when editing a cell
Better animation when selecting and editing a cell
* remove glowing logic when editing a cell
Error handling on lines and columns
* the line is flashing if a duplicate is found on this line
* the colum is flashing if a duplicate is found on this column