Make px_mkfw.py and px_upload.py compatible with both python 2.7 and 3.3
Merge branch 'master' into python3_compat
Avoid unneccesary cast
Uploader works now with Python 2.7 and 3.3
The python uploader can now reboot the board
Merge pull request #366 from julianoes/python3_compat

Make px_mkfw.py and px_upload.py compatible with both python 2.7 and 3.3
Merge remote-tracking branch 'upstream/master'