Modified windowloader to add new window objects to a parent object instead of window in order to allow deeper hierarchies
Removed text field from button; added text label initialization
Added text field to button
Added font size to text label
Renamed enums so that their naming is more consistent with rest of the code
Added offsets to text label
Test case for right align
Removed unnecessary factory from button constructor
Fixed tests. Test script now removes any test files after tests are run
Modified install scripts to delete any folders they create
Merge branch 'master' of github.com:Valtis/sdl_gui