- Adding tests to MetricsConvesionController.js;
- Change MetricsConversionController.js in order to make it testable;
Merge remote-tracking branch 'upstream/master'

Conflicts:
	js/controllers/MetricConversionController.js
Adding test to invokation of the resets methods.
Fixing the temperature bug when we try to convert negative temperatures or
0º
Adding standalone test runner.
Merge pull request #19 from danielpsf/master

Adding tests and make the controller more testable!
Thanks Daniel