Fixed bug that only appeared in errors.
Added a function to copy image data.
Fixed Ctrl-Enter bug from old code.
Split pixel looping into modifying and non-odifying variants.

Also renamed library stuff to be more in-line with the new naming scheme.
More functions now return things. Non-returning functions are baaaad.
Don't call positionOutput if it doesn't exist.
Added settings icon.
Fixed Ctrl-Enter bug properly this time.
Ensure the stack exists before setup functions called.
Merge branch 'master' of github.com:eightyeight/processee
Improved examples.
forEachPixelOf now copies into anonymous images correctly.
Renamed __getImage because it might be helpful to users as well.
Return a pixel even if it's out of bounds.
Merge branch 'master' of github.com:eightyeight/processee