[#38986259] have_receivecd() shows history of messages the fake, spy or double has received

have_received() was refactored to access the actual value.
Use NSValue method on both iOS and OS X
Fix memory leak
Merge pull request #275 from jeffh/have_received_history

[#38986259] have_received() shows history of messages
[#77214526, #253] Added CoreGraphics Geometry Comparators for OS X
Move CoreGraphics import to spec-only.