Merge pull request #6 from ppvk/dev

fixes #3 at a possible performance cost, Did some work to help with #2, we'll see if it helps

merged PR fixing collisions, changed version number since we renamed Cells back to Chars

revert cell/char label change

revert cell/char label change

basic keyboard implementation

remove global mouse variable, use static getter instead

adapt code to last commit

put default colors as static in the Color class itself, declare the default bg and fg colors in the Char class

increment version

export the Array2D class for data layers

Chars are now Cells since they do more than store character values, colors should interpolate opacity, Images can be generated from a subset of another Image's cells

Chars can now have String flags applied to them.

removed two unused vars, ClickEvent now contains a Char object as well.

updated gitignore