Added constructor and id to Recipe class
Broken cache
cache broken still bu closer
Cache works FOR INGREDIENTS ONLY. There are weird bugs when you save and
load two files.
Changed Cache load/save
Cache seems operational now.
Fixed some methods in cache, recipe, and step classes
Added jUnit test cases for every class. Yet to implement proper tests
for Photo and Database
Merge pull request #11 from CMPUT301W13T04/test

Added jUnit test cases for every class.
Merge pull request #12 from CMPUT301W13T04/Cache

Cache completed