issue #98 - gridster elements now remember their sizes and positions
issue #98 - desktop widgets now remember and store their positions. Resizing of these widgets is not yet enabled.
issue #98 - update the saved state of a widget whenever the z-index changes. There is still a problem with the z-index logic, which is captured in #99
Merge pull request #100 from ozone-development/issue-98-save-widget-size-and-position

Issue 98 save widget size and position