Add settings to memory data store
Merge pull request #1 from chrismohr/add_settings_to_memory_store

Add settings to memory data store
Merge pull request #43 from chrismohr/master

Add Settings to Memory DataStore
Updated Repository._find_by_attribute to handle the case where the data store returns an array with a nil element in it.
Merge pull request #45 from ryannak/master

Repository#_find_by_attribute to handle the case where the data is nil