merge upstream:HEAD, add simple Data.Sequence based queue
Add a regression test for leaking pinned objects when using gen-call
Simplify LeakByteStrings to focus on Async only
Minimise test for leaking bytestrings
Minimise LeakByteString to the use of `say' only
Add various options for checking what's causing our leak
add some more regressions
Simply test for leaking during handleCall/Async
Flip the usages in our leak test
Spelling
Use Data.Sequence as a queue in the SimplePool example
Do not link with profiling enabled by default
Tested on GHC 7.6.2
Cosmetic