Tidy the shell commands a little, by abstracting common options, and add a
mochatap variant.
stopped linter from complaining about hanging expressions
Add Sinon assertions for chai - sinon-chai:
https://github.com/domenic/sinon-chai
Investigate what's going wrong with one test converted sinon-chai format.

To run just the changed test (after doing 'grunt concat' to compose the tests):

./node_modules/.bin/mocha-phantomjs www/tests/index.html?grep="backbone basic authentication"
Merge branch 'testing-enhancements' of github.com:SpiderOak/SpiderOakMobileClient into testing-enhancements
Fix for simon chai tests
Add chai 'should' syntax.
Convert to sinon-chai 'should' syntax.
Convert to sinon-chai 'should' syntax.

Remove sinon-chai 'expect' syntax (in index.html).
Merge pull request #20 from SpiderOak/testing-enhancements

Testing enhancements