Group Jasmine and Siesta tests

Prior to this commit, Siesta and Jasmine tests were kept separately at
the project root. This commit moves both Siesta and Jasmine tests into
a "tests" folder and groups sets of Siesta and Jasmine tests into
categories for faster reading and cleaner path references.
Add example model tests

Prior to this commit, there was no test code covering the app's
models. This commit introduces example specs for the Vendors and
Products models.
Add store test

Prior to this commit, there were no tests for the project's data
stores. This commit introduces an example jasmine test for the
Product.js store.
Add properly tested models

add tests and fix models that already exist. Also provides a template for future model tests. Change the name of City.js to Vendors.js to follow a proper naming convention.
change filename in stores

I changed the filename in the stores because there was a reference to the previous filename.
rebase to dev

rebased the branch to dev so that it will fix any issues
Add vendor inventories to appjs to fix some issues
fix siesta files

Fix all of the file paths in the siesta directory. This was broken from moving the test stuff into a single directory.
Merge pull request #18 from jabroderick/testing-with-jasmine

Testing with jasmine

Everything checks out - well done!