Refactor: Store lists in a hash.
Refactor: Stash the list on the card object.
Move cards to Done list instead of archive.
Sync new cards first.
Need to link the list on add as well.
Sync labels.
Update docs.
Spot re-opend cards and move back to Current.
Add lots of debug.

Trying to spot any network access that isn't needed as the sync seems quite
slow. Didn't find any.
Include issue.number in the title.
Rename lists to trello_lists.
Add some links to the docs.
Only move to Done once.
Merge pull request #16 from shadow-robot/F_trello_friday_fun

F trello friday fun - Fixes #11 Fixes #12