Always push all formular fields.

In DC General the model only exists in memory and without the formular
data, the widget may not be called if it is part of a non-default
palette.
Do not pass striAction via POST.
Rename buildFormData into collectFormData.
Update the request token.
Finally rename buildFormData() to collectFormData()
Add the request token to the collected form data.
Merge pull request #9 from tristanlins/hotfix/dc-general

Always push all formular fields.