updated validation style
made styling for ckeditor
merged with develop
merged with develop; added current build files
Merge pull request #164 from massiveart/feature/validation

feature/validation
merged conflicts; added current build files
corrected round borders at bottom
Merge pull request #170 from massiveart/feature/ckeditor-styling

made styling for ckeditor
adapted tabs styling
Merge pull request #173 from massiveart/fature/tabs-styling

adapted tabs styling
fixed merge conflicts