[TASK] Remove legacy code
Merge pull request #391 from hmspl/legacy

[TASK] Remove legacy code
[BUGFIX] Fixed d&d moving after
Merge pull request #390 from hmspl/move

[BUGFIX] Fixed d&d moving after
[BUGFIX] Inside flux tce hooks should only be processed once
Merge pull request #393 from hmspl/hook_once

[BUGFIX] Inside flux tce hooks should only be processed once
[TASK] Support form variable stored in template variables
[TASK] Use already assigned variable instead of calling getter again
[TASK] Include $this->templateVariables from provider when reading Form