* Fixed ckeditor body bg issue when content is empty
** Fixed bug where right answers were not cleared on new text field
Merge branch 'FTR-44_material-editor' of https://github.com/otavanopisto/muikku.git into FTR-44_material-editor
- vertical radio buttons typo fix
Merge branch 'FTR-44_material-editor' of https://github.com/otavanopisto/muikku.git into FTR-44_material-editor
- dropdown list empty option support
** Correct handling of checkbox `checked` field in textbox properties
Merge branch 'FTR-44_material-editor' of https://github.com/otavanopisto/muikku.git into FTR-44_material-editor
- IE fixes
Merge branch 'FTR-44_material-editor' of https://github.com/otavanopisto/muikku.git into FTR-44_material-editor
** Localized text field answers list
Merge branch 'FTR-44_material-editor' of https://github.com/otavanopisto/muikku.git into FTR-44_material-editor
Merge branch 'devel' into FTR-44_material-editor