simplify travis script
enable IE browser testing in travis
secure tokens aren't available for pull requests

Now you can use the saucelabs jazz locally also.
new `grunt test:full` task tests in many browsers

Moved the travis specific stuff back into the travis file
run tests in old iOS, but allow failures
define public saucelabs info for everything to use
iOS is failing again. Will debug separately
tests fail in Safai now. unblocking for now.

Add these back in as build blockers once those issues are fixed.
combine iOS and IE matrix tests
PICK ALL THE NITS!!!1!
sets each IE separately for now
move sauce labs config out of the Gruntfile
fix lint
enable code coverage and code complexity reports
removed complexity report until it's fixed
Merge pull request #628 from subtleGradient/subtlegradient/travis-task-cleanup

add browser testing to travis
Fix lint error (unused variable)