remove old unicode syntax
add needed import
add needed unicode_literals import
remove old unicode syntax
update travis file
Import app_settings in the __init__ file.

Without this, some strange corner case bug in python3.2 prevents the module-class
hack from working as expected. Not sure exactly why, but the fix is pretty simple.
Merge pull request #781 from lsgunth/master

Python 3.2 Support (Redux)