increase unit test coverage on account server

Change-Id: Id728a17180f4ee2e31edaef0af6d26446b6014c2
Merge "increase unit test coverage on account server"
Fix misspelled variable.

Change-Id: I243de23d5acee135113dc81fca6244d651a2d9a8
Merge "Fix misspelled variable."
Fix for attempted COPY of objects gt MAX_FILE_SIZE

If X-Copy-From is a manifest object, it can be bigger than MAX_FILE_SIZE.
Currently this fails with 503. It should be 413.

Bug #1158279

Change-Id: I7ec16088046c84e42d5be9c865e1338eb07845b6