[Core] Added route for top level
[Core] Added single file for top nav to be used across application
[Core] Added layout for left column
[Core] Added default layout to include powered by footer and include top menu nav
[Core] Extend the single column layout in the dashboard view
[Core] Extend the CSBillCoreBundle default layout in the single column view
[Install] Re-factored layout to use the CSBillCoreBundle one_column_left layout, remove un-needed powered-by footer, remove body block and set title