Merge pull request #606 from derrabus/2.8

JS error "tinyMCE is not defined"
Fixed TinyMCE issue
Cs fixes
Fixed "Remember Me", closes #604
Don't show a empty sticky FAQs box, closes #450
Improved layout for iPad in landscape mode
Fixed wrong path, closes #608
Use icons instead of text
Naming
Added missing multi site feature strings for German and English, closes #612
Added Symfony HTTP Foundation to vendors.
We use namespaces for new classes.
Use Symfony's Response class.
Use Symfony's Response class.
Use Symfony's Response class.
Use Symfony's Response class.
Use Symfony's Response class.
Use Symfony's Response class.
Use Symfony's Response class.
Use Symfony's Response class.