Enable email notifications for Travis
Add String ids for Recipes, Add description.
Also adds fest assertions.
Add Random Data Generator
Add Update Recipe
Add delete
Add search by name for recipes

Refactor search by name
Add search for recipes with just one Ingredient

Add another test, making sure we get only results we want

Test case for searching by multiple Ingredients
Serch recipe by ANY or ALL ingredients (refactor might be required).

This lets us search recipes from ingredients in two ways :
1. Recipes that have ALL of the ingredients.
2. Recipes that have ANY of the ingredients.
Merge pull request #49 from f2prateek/elasticsearch

Add ElasticSearch