refactor(jasminewd): use jasminewd from its own node module

The Jasmine Webdriver Adapter is now its own npm module. The code has been
moved to http://www.github.com/angular/jasminewd.

Remove the code from Protractor, and add a dependency on jasminewd@1.0.0.
docs(driverprovider): add documentation for the requirements of driverproviders

Also, remove the redundant `.dp` in their filenames.