Upload tomato varieties to crop database

Simple upload of tomato varieties from the [crop wrangling spreadsheet](https://docs.google.com/spreadsheet/ccc?key=0AmnATvIrO73HdHRiMXBFbEk3dUJNTmFNazZZX0U0Ync#gid=1)

PT story: https://www.pivotaltracker.com/story/show/78687644