UI and JS Clean-up - Sidebar, filter wireframe

Made the sidebar left align and be shrunk. Adding multi-tab
functionality to the sidebar and begun to wireframe out the idea of
filters. Also changed the name and moved the initialize function to a
seperate JS file.
Removing unused CSS and fixing hide button

Removed unused CSS I took from the DON Neighborhoods service map when I
tried to merge the two projects together. Also made it so the sidebar
hide button works with one click instead of two the first time around.
Merge pull request #2 from frank0051/DEV

Dev Pull - Pulling in Various style and UI clean-up