style fixes

* 2 space tabs
* simplify conditional logic
fix indentation in map.coffee
remove unused method
remove unused variable
removed unused variable

also, i'm not sure why you'd ever want
to define a variable undefined as that would
be its default value.
remove commented out code
fix function arrow spacing
remove unused parens
Merge pull request #807 from aesnyder/aes/window-child-style-fix

style fixes