Add more "Objects" tests and fix failing tests.
Add more "Objects" test and fix tests for node.
Fix failing tests for `rhino -require`.
Remove secure sauce access key since @pimterry is on the case.
Avoid broken `Function#bind` in Narwhal.
Fix asyncTest with `rhino -require`.
Add more "Objects" tests to test/test.js.
Simplify environment detections.
Update builds.
Update `underscore` build with `_.difference` patch from lodash-cli. [closes #373]
PoC saucelabs test runner
Initial working saucelabs test result recording
Updated travis config to run the saucelabs tests for various browsers
Moved sauce connect management to saucelabs.js, for manual control
Add test listener to QUnit to report results for saucelabs
Improve console logging output for saucelabs tests, and explicitly close sauce connect
Move saucelabs to an explicit travis case, out of the build matrix

This avoids us rebuilding it with every other combination (saucelabs + node .6/8/.10), as that's not really useful
Move saucelabs test config into /test
Merge pull request #376 from pimterry/saucelabs

Automatic browser tests with SauceLabs in Travis. [ci skip]
Cleanup tests and add more `_.isEqual` tests.