Create new cards with the same labels and members as the parent card.  Fixes #1.  Fixes #2.
Add list collapse toggle button.  Resolves #8.
Improve collapse styling on first list
Store list visibility states (associated by board/list names).  IDs would be robust vs renames, but would require AJAX queries to get at board/list IDs.
Merge pull request #15 from MaulingMonkey/master

Can has more features