Get Karma working with our microlibraries and IE8

[dchambers]

Using topiarist, I tried the latest versions of karma 0.13, 0.12, 0.11 & 0.10, and was unable to find a single version of Karma that worked with IE8. I've already identified a couple of the underlying problems in karma-runner/karma#1529. We'll need to find some resolution to this before we can move all of our libraries to NPM.

[dchambers]

These are the extra entries I tried adding to our karma-saucelabs.conf.js BTW:

SauceLabs_IE8_XP: {
    base: 'SauceLabs',
    browserName: 'internet explorer',
    platform: 'Windows XP',
    version: '8'
},
SauceLabs_IE8_Win7: {
    base: 'SauceLabs',
    browserName: 'internet explorer',
    platform: 'Windows 7',
    version: '8'
},