Add arrays dependency

Author: garyb

bower.json

@@ -21,6 +21,7 @@
     "package.json"
   ],
   "dependencies": {
+    "purescript-arrays": "^1.0.0-rc.4",
     "purescript-functions": "^1.0.0-rc.1",
     "purescript-lists": "^1.0.0-rc.1",
     "purescript-st": "^1.0.0-rc.1"