Creating directory for results file. Fixes issue 6520
should be allowed to pass in a ProxyType when specifying the proxyType field to a new Proxy object

Fixes Issue #6513
adding test for the last change
Unignoring a test passed locally by Chrome
Implementing ability to return Date object from executeScript (Firefox only)
Merge branch 'master' of https://github.com/SeleniumHQ/selenium