Created README.md for the "develop" branch.
Update README.md with features in development list

Updated README.md with features in development list and a couple minor formatting fixes.
Added option to select screen size.
Extra formatting in the screen size prompt.
Cleaned up and improved window size dialog.
Fixed width and height selection dialog
Swapped around the variables in setdisplaymode so that window would display correctly.
Added TODO's for various things
Major rebase of code from Java to Groovy.
Finish Feature-BasicMenu (NOTE: Basic menu was not implemented, however the code was rebased from Java to Groovy.
Added information for GroovyDoc generation.
Finish Release-0.2.0. NOTE: Game is currently only runnable from inside and IDE.