use a different, greener cloudmade tileset for maps
Merge pull request #311 from Skud/pretty-maps

use a different, greener cloudmade tileset for maps
removed marker bounds on hover
Merge pull request #312 from Skud/one-more-places-fix

removed marker bounds on hover
Removed deploy script reminders, as no longer necessary
Merge pull request #314 from Skud/one-more-places-fix

Removed deploy script reminders, as no longer necessary
Added caching of full crop hierarchy

... as that page is really slow to load at present.
Merge pull request #316 from Skud/crop-hierarchy-caching

Added caching of full crop hierarchy
Added referral_code to Order

Also added validation (alphanumeric), but we're fairly lax about
whitespace and case, and clean up for them if they make minor errors.
added referral_code to order form/checkout code
moved admin order search into a model method
Added referral code search to admin forms
Added tests for admin order controller
Fixed up db/schema to remove spurious payments table
add referral code to order admin table
Made li list style dots more specific

We set all li elements to use list-style disc, but it was affecting our
navbar.  Changed it to use a specific class in the crop hierarchy (where
we actually cared about it).
Fixed navbar display CSS

1) Made sure padding is applied to the body *only* for the larger screen
sizes (by doing so before the responsive CSS is loaded)

2) Fixed indentation on the footer, which was incorrectly putting it
inside the main body container, and thus making it do this weird
narrowing thing at smaller screen sizes.
A basic implementation of a CSV dump for crops
added dates created/modified to crops csv
Merge pull request #318 from Skud/order_referral_code

Order referral code