Adding model and publish rules

Also, updating the main view to show genres list and loading messages
when appropriate.
Configured unit tests for the client

1. Removed following meteor packages: velocity, velocity-html-reporter, jasmine, jasmine-unit
2. Configured Gruntfile, packages.json file to load plain jasmine and karma libraries
3. Introduced meteor-stubs

It is much easier to unit test the code this way because Meteor does not get in the way at all.
Re-factored some of the scss files

This is a simple app and does not require a very elaborate style folder structure.
Also, removed backup files that were accidentally checked in before.
Merge pull request #4 from SimonNodel-AI/002-AddModelLayer

002 add model layer