Merge pull request #257 from dirkcuys/master

Update help link and add function to delete spam courses.
Merge pull request #259 from dirkcuys/master

Add button for admin to delete spam courses
Merge pull request #261 from dirkcuys/master

Add pageview tracking to get spammer IPs
Merge pull request #263 from dirkcuys/master

Functionality to delete spam users and the courses they created
Merge pull request #265 from dirkcuys/master

Update Hewlett GA tracking
Merge pull request #267 from dirkcuys/master

put removal of courses from the learn index in a try catch block
adding a square logo for discourse
removing blue background rendered in the IE8 on Win7
Merge pull request #270 from dirkcuys/master

Fix content escaping issue within pre blocks
Merge branch 'master' of github.com:p2pu/lernanta
changing the logo of school of open, and adding a redirect to their new homepage
adding the missing home_page.css
Merge pull request #269 from ercchy/master

adding a square logo for discourse
adding the missing image for soo
Merge pull request #274 from ercchy/master

adding the missing image for soo
Update link to discourse forum