- test fix

- new post module action temporarily removed

- new gadget for common features
- controller only renders view of a document
- new action for post creation
- corresponding action handling

- use action instead

- a generic gadget is used to add any document (based on portal type)

- wip: change name to add document

- post reply action creates a new post with "Re:" title and renders the corresponding action dialog form

- things in post list view are still hardcoded, but controller contemplates form lists now

- signature layer for appcachestorage sync changed to memory type
- obsolete post view removed