extract modifiers
extract op
extract repeat
extract keyCode
extract modalKey
extract method "setKeyStroke:"
extract method "setOperationAndRepeatFromString:"
Merge branch 'cleanup-binding-init'
include the WebKit framework
run javascript code
load javascript setup code from file on disk
execute ~/.slate.js at startup
keep a dictionary with methods exposed to JS
'bind' method; ScriptingCallback wrapper class
change ScriptingCallback to an Operation subclass
keep an array of script operation bindings
alternate initialization for Operation
register the javascript bindings
allow final 'repeat' parameter in 'bind'
implement nudge operation for javascript