svg icon text 30px x 30px sun icon
.py change to point at the svg
Merge pull request #32 from parnelandr/svgs

Svgs
Added speed limit icons, and a speeding icon
svgs for the rest of the weather icons
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
injury men icons coloured to match legend and made appropriate changes in nzta2geojson
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
transport icons updated and a couple extra
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