WTD-1392
WTD-1367
WTD-1391
Some significant reorging in _menus.scss and _constants;
Create menu normalized with context menu styles;
Bottom bar of overlay overflow set to visible to prevent button clipping;
WTD-980
WTD-396
Changed glyph for stacked plots;
Normalized button line-heights and size of required symbol;
Updated symbol art in symbols font;
Restored mistakenly removed "menu" gesture to grid-item;
WTD-1248
WTD-884
Changed z-index of context menus and bubbles to put the menus above;
Changed text wrapping of 'value' td to no-wrap;
Changed min and max-width of .l-infobubble;
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;
