Bump version to 7.8.1

The version for RC2 will appear as '7.8.1.<date>'

Signed-off-by: Austin Seipp <aseipp@pobox.com>

configure.ac

@@ -13,7 +13,7 @@ dnl
 # see what flags are available. (Better yet, read the documentation!)
 #
 
-AC_INIT([The Glorious Glasgow Haskell Compilation System], [7.8], [glasgow-haskell-bugs@haskell.org], [ghc])
+AC_INIT([The Glorious Glasgow Haskell Compilation System], [7.8.1], [glasgow-haskell-bugs@haskell.org], [ghc])
 
 # Set this to YES for a released version, otherwise NO
 : ${RELEASE=NO}

Cabal @ e97aa58f

-Subproject commit ee6d1cf5cefe18f6d74ed379af21d92f8b0ae92d
+Subproject commit e97aa58f68519db54de1c62339459ebb88aed069