chore: rename this shit to Karma

BREAKING CHANGE: this breaks in couple of ways
- whenever you call the "testacular" binary, change it to "karma", eg. `testacular start` becomes `karma start`.
- if you rely on default name of the config file, change it to `karma.conf.js`.
- if you access `__testacular__` object in the client code, change it to `__karma__`, eg. `window.__testacular__.files` becomes `window.__karma__.files`.
Conflicts:
	CHANGELOG.md
	CONTRIBUTING.md
	README.md
	Testacular.sublime-project
	adapter/angular-scenario.wrapper
	adapter/jasmine.wrapper
	adapter/mocha.wrapper
	adapter/qunit.wrapper
	adapter/require.wrapper
	lib/init.js
	lib/server.js
	static/testacular.src.js
	test/client/jasmine.spec.js
	test/e2e/basic/karma.conf.js
	test/e2e/mocha/karma.conf.js
	test/e2e/qunit/karma.conf.js
	test/unit/logger.spec.coffee
chore: set node dependency to a fixed version (0.8, 0.10)
chore: update changelog from stable