feat(cli): allow passing params directly to your test

Adds a config object 'params' which is passed directly
to instances of protractor. 'params' may contain nested
objects, and can be changed via the command line as:

  --params.login.user 'Joe' --params.login.password 'abc'

This change also switches to using optimist to parse
command line flags for more flexibility and better usage
documentation. Closes #32.
docs(referenceconf): add link to full minijasminenode options
docs(locators): add usage for input, textarea, and selectedOption
chore(deps): add mustache as a dev dependency for generating docs
docs(api): api update for version 0.11.0
chore(release): 0.11.0 changelog update