[GREEN] Standardish

This changes the names of some method names to something more 'standardish'.

    attr -> setAttribute

    removeAttr -> removeAttribute

    create -> createElement

    css -> setStyle

    val -> setValue

Filenames, Readme and specs updated to match. 

Also this modifies the build tool to work from the root of the project, so you no longer `cd` into `build/lib` you just issue:

    node build cash

from `root`. Notice the `.html` extension is not passed anymore as we do expect the `build file` to be an html file.