Merge pull request #108 from richo/docs/frame_

Fix frame_* showing return value as args
Don't be silly, no one's asked that.
Real questions. Seriously.
Simplify protocol :) Fixes issue #111
-1 is forever
Well, kinda.
Usage comparison.
Better readme
Better pics.
Descriptive NSLog when untracked app dies.
Merge pull request #113 from pda/log_message_untracked_app

Descriptive NSLog when untracked app dies.
Add stub for chicken scheme implementation
Add a transformer for modifiers
Listen for callbacks and log them
Implement the callback router
Implement bind

Has a bug in that the registration calls the thunk
Fixup argument handling to pass the args into the callback function
procedures to call with the current and focused windows
Add support for unix domain sockets
Explicitly pass the null reciever to send