update wymeditor to v1.0.0b3
updating wymeditor styles
now we can hide the sidebar if necessary
fix control colors for slider
using SHA1PasswordHasher for tests instead of UnsaltedMD5PasswordHasher
remove useless load
pep8 cleanup on the demo
fix check_is_spam is the spam-checker backend is None, close #199
Merge remote-tracking branch 'upstream/master'

Conflicts:
	zinnia/static/zinnia/css/screen.css
	zinnia/static/zinnia/sass/partials/_entry.scss