Add FindsByValue, ByValue locator
Remove FindsByValue, add static locators to By
Remove By.index in favor of By.attribute use
Update labelFor locator parameter name
Merge pull request #19 from dmcneil/darcy-web-finds-by-value

Extend By with value and labelFor using ByAttribute
Replaced UrlMatcher interface with Predicate
Merge remote-tracking branch 'origin/master' into fork-master