first pass at mobile styles
mobile style refinements
remove hide-address-bar script
responsive styles
style menus for larger screens
style close-btn on large screens
style authed user-menu on large screens
map height for iPhone 5+
fix shadow on .close-btn for large screens
restyle forms, comments, hearts
better-padded user menu on large screens
align map's right edge to left edge of content when open
Nix getOffsetCenter function. Center is always center.
taller map on iPhone
smaller powered-by
only show #ticker when acitivity enabled, size #content appropriately
style #user_support font weight consistent w/ other buttons
nix instructions arrow image
drag instructions for adding places
big leaflet buttons, locate-me under zoom on large screens