Replace Testling with browserstack-test and Grunt.
Add browserstack reporter to the test suite.
Use the correct BrowserStack secrets.
Use the correct BrowserStack secrets (again).
Merge branch 'master' into bs-browserstack

Conflicts:
	package.json
Refine the browser test list.
Set the timeout to 60 seconds.
Revert removing Safari 5.0 from the browser list.
Merge pull request #64 from bramstein/bs-browserstack

Drop Testling and use BrowserStack instead