Remove trailing whitespace and fix start a tradeschool link.
Fix another link and clear out content from old start-a-school fixtures.
Add is active to admin page for organizer.
Merge pull request #153 from dnephin/start_tradeschool_link

Fix the "start a tradeschool" link on the main page
Merge pull request #154 from dnephin/make_organizers_active

Allow admins to edit is_active of an organizer
making new organizers active by default