Merge remote-tracking branch 'upstream/master'
Proofreading CSS and Deploy
proof read django forms
Remove leftover django-toolbelt.
Merge pull request #67 from kerstin/master

 wording, grammar, clarified some things etc.
Proofreading Homework
Typo found Aigerim doing the tutorial.
Fixing some typos
Merge branch 'master' of github.com:DjangoGirls/tutorial
Merge remote-tracking branch 'upstream/master'
Merge pull request #69 from BluesFiend/master

Proofreading more pages
Merge pull request #70 from kampfschlaefer/chapter_security_authentication_and_authorization

Typo found by Aigerim doing the tutorial.
adding authentication to SUMMARY.md
Merge pull request #72 from BluesFiend/master

adding authentication to SUMMARY.md
Proofreading Auth homework
Simple proofread of contibution page
Merging in mysite fix
use safe and linebreaks filters for the text
Merge pull request #73 from BluesFiend/master

Proofreading of new Auth page
small tweak to cli intro as windows can also use mkdir to remove confusion