typeof console check for IE9, move WinstonTestHelp
Add doctype for test host HTML files for IE9

(to force it into standards mode)
Add sauce reporter, remove core module/chai config
Update dev dep: thehelp-client-project
Reorganize gruntfile
Add license file
Set browser list back to more comprehensive set
Add browser matrix to readme, few other tweaks
Added contributing changes section to readme
v3.1.0

* New: Support for reporting mocha test results to [Sauce Labs](http://saucelabs.com)
* `chai` diffs are no longer suppressed
* Support IE9 in tests: `console.log` only if console is defined, dev.html/dist.html start with proper doctype to get IE9 into standards mode
* 'src/both/core' module removed from thehelp-test.js
* 'src/both/winston_test_helper' module moved to 'src/both/thehelp-test/winston_test_helper' to prevent collisions
Readme tweaks