Added locations association to LocationGroup.  Removed events from
requisition until we've added database migration for this association.
Added hint message to datepicker.
Minor UI changes to record inventory page.
UI improvements for shipment list, details, and edit pages.
Added icons for each item in the dropdown action menu in the header.
Minor UI improvements to the dashboard expiring stock widget and the
choose location dialog.
Removed datepicker hint
UI improvement to the show/edit transaction page, as well as the record
inventory page.
Added location group scaffolding.
Minor UI improvements to the location list page.
Added i18n message property for location list page.
Fixed performance issue when loading inventory level page -- the
value range for the minQuantity, maxQuantity, reorderQuantity fields was
too large (0..2147483646).
A few more minor UI improvements.
Fixed location controller tests.