Fixed bug in delete collection.
Fixed bug in search.

Search is done by email address, not name.
Fixed typo in comments.
Added support for boolean views fields.
Fixed query settings for mediamosa_ck views.

The options
 - "Include collection information in the view."
 - "Include still information in the view."
 - 'Only show public marked assets."
 on the views query options for the MM views were broken.
 The myasset view for one depends on this.
Fixed a awkward setting flip on 'granted'.