Remove some unfortunate uses of INLINE
Drop a ton more uses of INLINE

--HG--
extra : amend_source : c838454f332970db35c7bad687558e146ae6043e
Deduplicate definitions of square
Get rid of obsolete GHC clauses
Small fixlet of null check
Drop an unneeded import
Specialize the definition of sort
Split out Alexey's matrix code into its own module

--HG--
rename : Statistics/Test/KolmogorovSmirnov.hs => Statistics/Matrix.hs
Simplify some names
Upgrade to QuickCheck 2.7.5