add compat.py to support django 1.5 changes.
Merge pull request #15 from gkmngrgn/django1.5-compatibility

add compat.py to support django 1.5 changes.
update pip files hierarchy.
added new readme title: contribution.
ignore build files.
install also global dependencies when developer installs from development.txt
move demo requirements do development.txt
redefine demo db name.
add lettuce
not required to pyyaml.
simple settings.
not required to ugettext.
not required to change sys.path.
insert lettuce.django before qhonuskan_votes in INSTALLED_APPS
add standart get_version method.
update MANIFEST.in for last changes.
update setup.py for last changes.