Upgraded project settings for Xcode 6
Added failing test cases for nil or empty password
Allows empty or nil passwords
Another test for trying to open an empty password database with a password
Added failing tests for the entity type of sub entities
Added method centralising the location where the entity type is hashed
Corrected format specified for NSUIntegers
Merge remote-tracking branch 'origin/entitiy_hashes'
Merge remote-tracking branch 'origin/empty_password'