open #159
open #170
Restructured overlay size and positioning approach
for better flexibility;
Getting new dialogs and the overlay to
play nicely in mobile context;
open #159
open #170
Properly re-cast model.hint and added model.actionText;
Moved progressText into progress-bar.html;
Tweaks to dialog styles;
Tweaked styles for progress bar;
Normalized various dialog templates markup;
open #159
open #170
Moved classes from _bottom-bar.scss into _layout.scss
and new file _messages.scss;
Removed _bottom-bar.scss;
Revised display behavior of .status.block to show label on
hover;
