Specification and test environment setup and LWdb specs defined

Bug in test environment setup fixed.

Now this should be possible

git clone https://github.com/hhzl/LearnWords2.git
cd LearnWords2
sudo npm install -g grunt-cli
sudo npm install
npm test
grunt

Try it without sudo first. If it does not work use sudo.

npm test runs the Jasmine specs and tests on the command line.
After starting grunt you can open SpecRunner.html in the browser.