Fix doc generation of GHC 7.2, where the haddock doesn't strip qualified names
Now tested with GHC 7.8.3
Require the extra library
Migrate to the library version of captureOutput
Delete the swap utility, it was unused
Switch from Control.Arrow to Data.Tuple.Extra
Remove isLeft and isRight, move to the extra library
Replace much of General.Concurrent with the Extra library
Stop General.Concurrent from exporting the Control.Concurrent.Extra stuff
Fix the self test so it picks up extra
Started moving to Control.Exception.Extra
Move the Extra versions of IORef operations
Move to using the functions out of Numeric.Extra
Use catch_
Throw the Numeric reexports out of General.Base