rails g scaffold Harvest...
Added associations between harvests, crops, and members
set cancan abilities for harvests
Prettified harvest form

Also renamed "notes" to "description" in database
Prettified all the harvest views
Validate units (must be one of individual/bunches/kg/lb)

Also changed "units" attribute to "unit". Oops, we weren't following the
Rails naming convention.
Validate quantity/unit for harvests

If quantity is blank, we also set unit to blank.
Added friendly urls to harvests
improve display of quantities
added harvest link to signed-in homepage
Merge pull request #322 from Skud/harvests

Harvests