Fix 3 bugs

Found three more integration errors in Act Bidding:
1 - when an act had been manually deleted, residual TechInfo data
caused problem everywhere we had data showing that linked back to the
Act.  This was true in 4 locations in the model, and would throw
uncaught exceptions for a number of reasons, including trying to view
ANY act (because available Tech Info objects are listed on the Act view
page).   Added catch and alternate path for a Tech info with no
associated Act.  FUTURE:  need to address whether associated tech info
and other objects should remain when the act is deleted, or be cleaned
up.

2 - 2 view act bugs - when ActEditForm was changed to display Audio and
Stage info, the way it is populated with a an act changed, but was only
changed in bid/draft, not in review/view, so the associated info never
shows up.