Updated product table to have # of reviews
Got all distinct categories that show up in the product table dynamically filling in drop down list
Added SQL for choosing by category...Theoretically should work
But doesnt.
More testing needed
Searching for products by category now works
Also added a back button for my sanity, so users can click an item off the list and then go back after looking at the recommendation
Added some comments and removed 1000 product limitation when importing
products & reviews
Merge branch 'searchCategory' of https://github.com/CXCS130-Fall-2014/cxretrevorec

Conflicts:
	service/src/main/java/com/shopzilla/service/product/ProductService.java
Restricted category results to 10