* : Extrancted rendering functionality from viewer to seperate 'renderer.py' file
* : Readability refactoring
renderer.py : Fixed issue with repeat action not working as expected
* : OS X Distribution test
* : Removing test dist files
* : Removing unused code
* : refactoring
editor.py : refactoring dimensions
* : Added mouse coordinates labels
about_window.py : Updated
* : Modified animation speed slider to be more intuitive