Add formatted Les Mis dataset
UI: Add CSS styles for panel layout
UI: Add draggable/expandable panels for layout
UI: Move tabs to AngularJS directive
UI: Add function to determine when to show viz tabs
UI: Add main panel layout page
UI: Move hide/show panels from partial to panel layout page
UI: Update visuals to fit into panel layout
UI: Remove fixed height for histogram visual
UI: Update syntax for directive object function chaining
Merge remote-tracking branch 'lab41/master' into pr-panels
Merge pull request #129 from kylef-lab41/pr-panels

Move project view into draggable/resizeable "panel" layout