Merge pull request #6 from gamel/master

Merge tests and readme correction back into SAGSL
edit the game main loop; enable rendering entity
Merge branch 'SAGSL' of github.com:gamel/gamel into SAGSL
insomnia again; fixing to without gives
polish front end trait
real time compiling for sbt
Cleaned up gives and added gives to scenes
Fixed compile errors and ambiguities
Moved nobody to a new file to keep things neat
auto-exit
Implemented actions
Merge branch 'SAGSL' of github.com:gamel/gamel into SAGSL
Wrote nobody with reference counting
Added some tests for nobody and gives to CoolGamelMain
Circles!
adding lazy evaluation of actions
Added some exception handling to actions
Added protected[gamel] in most files to restrict access to gamel
internals
More elaborate than CIRCLES!!
implementing key; make Snake