Refactoring
Minor refactoring
Slight refactoring
Use constants for Pango colored ON and OFF
Add constants for Pango colored ON and OFF
Make exception handling in local Odict module Python 2.5-3.2 compatible
Fix missing self.off -> constants.PANGO_OFF substitution
Cleanup all option loading code

 Option loading has been done directly from modrana.py for quite some time now.
Add batch tile redownload support

There is new toggle button in the Edit submenu, accessible from the batch download menu. Using this button, it is possible to force redownload of already available tiles.