docs fit for release

package version udpate

made checkboxs and radioboxes bootstrap confrom

remove helper use to fix fatal error by installer update

remove mform png form master

set new version 4.2.2

Merge pull request FriendsOfREDAXO#75 from joachimdoerr/master

Remove "block" and add css permanent

bump version to 4.2.0 after transfer to FOR