Initial attempt at moving quantity calculations into Candlepin.
Adding spec test for calculated attributes.
Move calculated attributes out to a separate class.
Adding calculated attributes to OwnerResource.
Remove requirement that consumers must be in a pool to get calculated attributes.
Remove some extra code from pool resource spec test.
Adding spec test for calculated attributes from owner resource.
Fetch quantity_increment from product attributes.
Use CoverageCalculator to determine quantity suggested.
Add calls to stackTracker's updateAccumulatedFromEnt.
Correcting some failing unit tests.