First demo of sources
Update csv2geojson
use vnd.github.raw header, closes #139
make clean && make
Merge pull request #141 from mapbox/vnd-github-raw

Use vnd.github.raw header
Merge branch 'v4' of github.com:mapbox/geojson.io into v4

Conflicts:
	lib/lib.js
	src/site.js
Load GitHub files on click, fix GitHub file loading
Split import panel and source panel
Refactor type detection, fix import panel
Move progress chart into module
Update github-file-browser
Make file bar represent gists and github slightly
Refactor out more map logic
Add flash and message UIs.
Use d3.keybinding. Fixes #156
Smarter toggling logic, cmd+o for source panel
Dragexit/dragleave fix. Implements #134
Longer flashes, save as gist flash
File bar permalinks
Wire up save button