add topics for floating title pane events - open/close/dock/undock.
Replace console.log statements with centralized error handler using
topic.publish.
Standardize parameters for published error as `source` and `error`.
Update use of proj4js to version 2.2.2
add `isDebug` property to config file (was looking for `debug`
in prior commit)
moved use of global `app` var from index.html to Controller.
set `window.app` when in dev/debug mode from within Controller.
convert 2 instances of console.log in Controller to use new handleError
function.
also hide the sidebar collapse buttons when sidebars are hidden for
tablets/phones by media queries for small screens.