Revert "refs #686 @0.5"

This reverts commit 7081460dde55642a9059832974a9c1985f39f50a.
refs #686 @1.5
 * manually installed CKEditor
fixed #686 @0.5
 * configuration of CKEditor installation
refs #685 @0.5
 * bugfix
refs #687 @1.0
 * added language list
refs #687 @2.0
 * added models and migrations for multi language support