find board by name with postcount

Bugfies. working state
Merge branch '0.0.1' of https://github.com/petershaw/InterestBoard into 0.0.1
FIX, list of currentusers

provide the list of current users in existing boards. On New boards do
not send a undefined list.
FIX add first post

The first post could not be inserted, because the board.post was not
existing.
Cleanup of boarddata.
Show Form for the tagline

if the board is yours or new, than show the form for editing the tagline
Merge branch '0.0.1' of https://github.com/petershaw/InterestBoard into 0.0.1