Morpho

Currently, various buttons in the Morpho UI cause individual files to be saved
and a new version of the file and package to be created. Need to change this so
that there is an explicit "Save" menu that the user selects when they want to
save their changes. Before save is selected, we need to store the accumulated
changes in temporary files, and only increment revision numbers when the save
occurs. THis should allow a user to change several metadata modules and the
data indepependently, and yet only revise the package once for the whole suite.
This should cut down on the rampant revisions problem, and be clearer to the
user how things work.

As part of this bug, remove all "Update", "Cancel", and other buttons that are
related to saving. This will probably involve movement to the new Jalama
editor, so assigning to brooke for now, but we'll revisit this decision later.