were no import os
source code format
some source code formatting
replaced ' through " (when strings are meant) part2 ;)
replaced ' through " (when strings are meant) part1 ;)
Added *.pyc to svn:ignore and set svn:executable on drpython.py and drpython.lin.
replaced "\\" by '\\' and "/" by '/'
- added more Information about operating system into AboutDialog