Initial commit
Ignore .beam files
Add another newline to help message
Fix typo in help message
Start to add json parsing
Enable json output
Tweak help message
Change json output to array of arrays

An array of objects would be a massive pain to parse in
javascript/coffeescript---even if it matched up better with the Erlang
representation of the data.
Add .gitignore
Add screen.coffee to generate pixel sets
Add Rakefile (as opposed to Makefile)
Tweak json.beam dependency
Tweak json.beam dependency some more
Tweak chmod dependency
Untweak recent dependency tweak
Fix for Google Closure & change read_one return

Screen#read_one will now return one pixel as each tone is fed in. It
returns `null` for skip and terminate.

Screen#read_one will also now explicitly match an action to a method
rather than implicitly, which should keep it from breaking if the
methods are renamed when run through Google Closure.
Improve json.beam dependency message
Rake multitasking!
Move all but main out of img.escript
Add some whitespace