[Frontend] Merge work in open279 into open199

open #199
open #279
Last commit didn't fully take...
Integrated inspector changes from open279 into
new edit mode work from open199; _layout.scss
had a bit of difficult conflict resolution but seems
good at this point...

platform/commonUI/browse/res/templates/browse-object.html

@@ -51,7 +51,7 @@
                 <mct-toolbar name="mctToolbar"
                              structure="toolbar.structure"
                              ng-model="toolbar.state"
-                             class="flex-elem grow">
+                             class="flex-elem grows">
                 </mct-toolbar>
                 <mct-representation key="'edit-action-buttons'"
                                     mct-object="domainObject"