fix failing specs in crud_spec

Two issues:

* looks like the hash method was interfering with the variable named
  hash in the module_eval block - renamed this to just 'item'
* escaped the slashes in the regex for getting the item id from the
  item
fix breaking test in latest activity

Creating a new page can trigger a translation to occur, which in turn
can cause the page to be updated.  The latest activity feed sees the
difference between the created_at and updated_at timestamps, and
treats the new page as an update, and not a new addition, in the test