revert makefile changes

Author: edwardchalstrey1

Makefile.am

@@ -165,6 +165,7 @@ EXTRA_DIST = \
 	contrib/games/my_3-3d.efg \
 	contrib/games/my_3-3e.efg \
 	contrib/games/my_3-4.efg \
+	contrib/games/myerson.efg \
 	contrib/games/nim7.efg \
 	contrib/games/nim.efg \
 	contrib/games/palf2.efg \
@@ -190,6 +191,7 @@ EXTRA_DIST = \
 	contrib/games/2x2a.nfg \
 	contrib/games/2x2const.nfg \
 	contrib/games/2x2.nfg \
+	contrib/games/2x2x2.nfg \
 	contrib/games/2x2x2x2.nfg \
 	contrib/games/2x2x2x2x2.nfg \
 	contrib/games/3x3x3.nfg \
@@ -216,6 +218,7 @@ EXTRA_DIST = \
 	contrib/games/mixdom2.nfg \
 	contrib/games/mixdom.nfg \
 	contrib/games/oneill.nfg \
+	contrib/games/pd.nfg \
 	contrib/games/perfect1.nfg \
 	contrib/games/perfect2.nfg \
 	contrib/games/perfect3.nfg \