Clicking on the pane tab now will make the treeview
invisible, and set the width to 0. BUT, this does
not immediately move the splitter bar, though it
does go to the correct width if clicked.
Needs more work.
WTD-839
Removal of 'icon-btn' class from *.html;
Cleanup of markup in switcher.html;
'name' span is now hidden when switcher is within frame;
Commented out unused css classes in _controls.scss,
Normalization of markup in object header when in main view and framed objects;
Icon sizing fixed in menus and switcher control;
Tightened up spacing in menus;
WTD-1048
Originally did a lot of this work in warp1048 by mistake
This commit pulls in all /platform-only changes from that branch
Mods are mostly related to WTD-1046 specifically, but also touch toolbar and buttons
