removing the Options class and all usage

This class in hindsight is unnecessary and, while well-meaning, just
doesn't seem to fit well anymore.  I've replaced it with an `option`
class method on views that accomplishes the same effect with much
less code.

The net result is that you specify view options the same way, except
that where before you did `view.options.pass_abbrev 'P'` you now do
`view.pass_abbrev 'P'`.

Closes #115.
Merge pull request #116 from redding/kr-options

removing the Options class and all usage