Print out string error messages after panic!
Use docopt git repo

The current version of docopt in the cargo registry is failing to build.
Use the latest git version for now.
Fix failing build - remove use of proc
Merge pull request #40 from Arcterus/panic-error

show panic! messages after shutdown
First pass keymap implementation
Add commands for move-to-line-end/start
Tweak the `Command` enum, add a few Ctrl keys
Rebase, move binding initialization to keymap
Move all key bindings into KeyMap
Ctrl-H should delete to the left, not the right
Rebased, use `cursor()` and `Arc<AtomicBool>`