Locate by label attribute if it's valid for element. Closes #219
bump watirspec
Updated LICENSE to indicate it is the MIT License

added info on license type, makes things a lot easier for companies with rules about what kind of OS software they can use.   We are using the MIT license, but did not state that.
Merge pull request #221 from Chuckv/patch-1

Updated LICENSE to indicate it is the MIT License
Add license to gemspec.
Change build to use chromedriver 2.4
Bump watirspec.
Fix rspec deprecation warnings, bump watirspec.
Bump watirspec.
Bump watirspec.
Update (suggested) from RSpec should to expect.  Includes changing == to eq and =~ to match
Bump watirspec.