- Move configuration of Karma unit-tests from `Gruntfile.js` to a
standalone file (`test/karma.conf.js`).
- Add a new Grunt task `karma:unit-ci` to run Karma unit-tests in
PhantomJS and produce karma-xunit.xml file that can be consumed
by the CI server.
- Add grunt-mocha-test, configure it to run unit-tests.
- Add `grunt test` task that runs both karma and mocha tests,
detects Jenkins to produce XML output on CI server.
- Modify the `test` script in `package.json` to run
`grunt mocha-and-karma` (an alias for `grunt test`).
The alias is required to trick `sl-ci-run` to run `npm test`
instead of calling directly `mocha`.
- Add `es5-shim` module to karma unit-tests in order to provide
ES5-methods required by LoopBack.
- Fix `mixin(source)` in lib/loopback.js to work in PhantomJS.
`Object.getOwnPropertyDescriptor()` provided by `es5-shim` does not
work in the same way as in Node.
Miroslav Bajtoš