Added navbar to layout.
Made navbar links into buttons.
Adjusted grid layout of the index page.
Reformatted layout of the property showpage.
Corrected grid layout of amenities form. Repositioned amenities checklist on the property show page. Still need to add conditional empty/checked check boxes on the property show page.
Added edit and update actions for amenity_sets, added conditional formatting to the amenities list displayed on the property show page.
Added conditional styles depending on whether a property has apartments, parking or amenities.
Corrected amenity checkbox conditional and adusted amenity list positioning.
Resized amenities checklist line item image (for property show page). Repositioned the amenities checklist and parking table. Made property.rent_structure and .target_population into disabled buttons (rather than in the address line). Converted the side-nav bar into a dropdown button.
Switched buttons in top navbar to dropdown menus.
Applied full page background image, adjusted font colors and disabled button opacties accordingly. Some minor repositioning of the description div as well.
Added styling.

Merge branch 'styling'
Removed unused images, set config.serve_static_assets to true while in production.