Update dependencies

Author: garyb

bower.json

@@ -22,7 +22,7 @@
   ],
   "dependencies": {
     "purescript-either": "^0.2.0",
-    "purescript-strings": "^0.6.0",
+    "purescript-strings": "^0.7.0",
     "purescript-unfoldable": "^0.4.0"
   }
 }