fix sessions_controller trip_id for defensiveness
add nav button far right top
add snowflake button and expand snowfall to full page
sexy button and sliding nav
add nav to every page
fix for chrome root page, bg img was not displaying properly
map canvas z-index(999) was preventing clicking on links, move to -1
nav is showable on all pages, moved forward z-index to overlay over map on show pg
Merge branch 'master' of github.com:samvantran/ski-mountain-memories

Conflicts:
	app/controllers/sessions_controller.rb
Merge branch 'master' into front_end_stuff

Conflicts:
	app/assets/javascripts/trips.js
	app/views/instagram/new.html.erb
	app/views/trips/new.html.erb