Python shebang and chmod +x
W191 pep8 fixes, repaced tabs by spaces
pep8 fixes block comments (E265) and None comparison (E711)
pep8 fixes:
 - W293 blank line contains whitespace
 - E501 line too long
 - E302 expected 2 blank lines
 - E301 expected 1 blank line
 - E401 multiple imports on one line
removed unused import
Merge branch 'feature/pep8_fixes' into develop
make the netifaces module optional
- ported to windows
- removed signal and traceback modules deps
- updated authors
v20140613 changelog
Merge branch 'release/v20140613'