Disallow resizing the map legend.

Once the map legend is rendered, there is no
need to be able to resize it since the contents
do not change.
Merge pull request #34 from christophercarr/fix_legend_resize

Disallow resizing the map legend.
Remove graph download option while it's broken
Load data sources in alphabetical order

Credit to Colin
Merge pull request #35 from gabegorelick/ds-order-fix

Load data sources in alphabetical order