Move "new card" form on board page
Rename CardTest to CardsInteractionTest
Reflect code to create cards on board, not on lists
Rename column to list
Ensure cards get created on the first list
Remove wrong redirect
Avoid class name mismatch between tests
Remove unnecessary redirect
Fix double quotes on BoardsTest
Render nothing on update, otherwise a template is searched
Merge pull request #13 from task-planner/one-card-form-per-board