refs #684 @0.25
 * added language identifier to url preview
refs #711 @7.5
 * reconfiguring of test suite
refs #711 @5.0
 * getting tests to run again
refs #711 @4.0
 * WIP
refs #711 @5.0
 * fixed page model specs
refs #711 @2.0
 * tests fixing
 * WIP
refs #711 @8.0
 * pages_controller_specs green
refs #723 @1.0
 * fixed creation of empty pages
 * marked all fields as required
refs #724 @3.0
 * data from rejected forms stay in the form
refs #711 @1.0
 * greened tests
refs #728 @1.5
 * new actions in pages tree
refs #723 @1.5
 * redone validations for page translations
refs #711 @2.25
 * fixed broken tests
refs #711 @0.5
 * added test
refs #729 @1.0
 * changed validation for local_path
refs #726 @5.0
 * every new language gets an index page automatically created
refs #726 @2.0
 * local path now allows . and /
wip
refs #729 @8.5
 * suggestion for local_path from parent page translation
 * updated gem
refs #729 @0.25
 * minor css changes