Fix comment.

Change-Id: I0c70eacac6b7d8756d7ea44c6a7fa83796175472
Prep org model for memory quota implementation.

Change-Id: I8efe7091f0b207155a3e08cf606f235fe1a3ec6a
Enforce org memory quota check during app creation

Change-Id: Id24b08c4342efedb829c4212d83bb202fba59671
Move quota tests from api spec to model spec.

Change-Id: I663dc969a1f44a4cbbc54af19ffc3c011a41b242