add complete module paths to many imports
remove some duplicate newlines and trailing whitespaces
remove unused import
add pyc files to gitignore
use 2to3 to convert to python3
replace print to file functions with write
remove file=sys.stdout from regular prints and fix them for python2
fix pathname2url import from urllib to work in python 2 and 3
add missing newline (pep8)
rework metaclass handling for singleton type to work with python 2 and 3
Merge pull request #5 from noxan/python3

Python 3 support