Merge pull request #32 from parnelandr/svgs

Svgs
Added speed limit icons, and a speeding icon
Added 2013's data, which required some additional error checks
Removed crash_id from GeoJSON
Changed date range in index.html
Merge pull request #33 from parnelandr/svgs

svgs for the rest of the weather icons
Updated ata
Fixed bug in loading data for mutiple years into the GeoJSON
Removed the img styling from the GeoJSON, and put it into CSS
Merge pull request #34 from parnelandr/svgs

injury men icons coloured to match legend
Updated data
Fixed bug in get_mode_involvment function.
Fixed bug in name expaner on State Highways
Fixed some more bugs related to street name expanding, and abstracted related code
Merge pull request #35 from parnelandr/svgs

transport icons updated and a couple extra
Updated data
Added new injury icons (with outlines), and modified the styling of the injury and vehicle icons
Merge pull request #36 from parnelandr/svgs

adding junction icons and folder
Added new junction icons
Added new conrol, conact-us and significantly reduced filesize