@wip

Several changes^H^H^H^H^H^H^Hupdates:
 - Played around in console to get an idea of where to go. ruby-trello == cool.
 - Demolished tests. Tests were wrongheaded because I didn't know what ruby-trello was capable of. Related to above.
 - Added cards and (didn't check details of commits) boards.
Merge branch 'master' of https://github.com/yibeikafei/concerto