fix node buffer dependency... now that it has a version

Author: jdegoes

bower.json

@@ -21,7 +21,7 @@
     "purescript-either":        "~0.1.3",
     "purescript-maybe":         "~0.2.1",
     "purescript-foreign":       "~0.2.0",
-    "purescript-node-buffer":   "*",
+    "purescript-node-buffer":   "~0.0.1",
     "purescript-node-path":     "~0.2.0",
     "purescript-datetime":      "~0.1.0",
     "purescript-exceptions":    "~0.2.1"