disable the MonadPlus instance for base >= 4.3.0.0 (it moved to GHC.Conc)
drwxr-xr-x - Control
-rw-r--r-- 1611 LICENSE
-rw-r--r-- 87 Setup.hs
-rw-r--r-- 77 prologue.txt
-rw-r--r-- 746 stm.cabal
drwxr-xr-x - tests