GUI-1207: Initial progress on revamped sharing panel for bucket/object details page
GUI-1207: Allow canned ACLs to be saved.  Refactor code to share ACL update handler between bucket and object details page.
GUI-1207: Leverage refactored sharing panel ACL code on Create Bucket page as well
GUI-1207: Allow ACLs updated on the bucket details page to be applied recursively to all objects in the bucket
GUI-1207: Display propagation warning modal when ACLs are updated on bucket details page
GUI-1207: Open link to file on object details page in a new window/tab
GUI-1207: Customize permission choices in sharing panel based on bucket/object type
GUI-1207: Fix alignment of manual controls in sharing panel
GUI-1207: Disable "Add Account" button after adding an account for an ACL in the Sharing panel
GUI-1207: Indicate required field for Account ID, with some workarounds to prevent the field from being required on the parent form.
Merge branch 'develop' into GUI-1207
Merge pull request #937 from eucalyptus/GUI-1207

GUI-1207: Revamped sharing panel for bucket/object details page