open #74
Added name for "base" (unknown) type in core/bundle.json;
Fixes to grid-item .details element:
- ellipsize,
- type now displayed properly;
- number of items with correct plural syntax;
open #74
CSS and markup changes for split pane holders;
drop shadow added to tree area;
Tree item cleanups;
This or earlier commit broke treeview nav action;
TO-DO: fix treeview nav action to hide menu;
WTD-1163
WTD-1146
New CSS to hide non-functional elements, including browse.top-bar with search elements;
Adjusted spacing, mainly in .contents CSS class;