Merge pull request #2 from sthirugn/master

Updated README where the test runner's name was misspelled.
Switching off Splinter to use Selenium WebDriver.

Decided to stop using Splinter and to use Selenium WebDriver directly.
Updated Login tests to reflect these changes.
Removed Splinter from docs and requirements.
More changes to locators.
Updated Navigator class to use new locators.
Updating user tests. So far user creation works.
More tweaks to user tests. More to go.
Fixed User.test_edit_user_1.
Delete test for Users is still now passing.