Add environment variables for sauce-labs in Grunt task

To use sauce testing from a dev machine please contact ichernev on github.
Add encrypted sauce-labs user/pass in .travis.yml
Add Firefox to karma browsers
Add missing karma launchers to package.json
Don't lint auxiliary test fragments
.gitignore min/tests.js and sauce_connect.log
Make firefox a separate karma launcher
Use dots reporter for sauce
Workaround for safari bug
Get rid of console.log in tests
Add test:server
Fix IE8 bug