Tweak dependency bounds

Author: garyb

bower.json

@@ -24,11 +24,11 @@
     "package.json"
   ],
   "dependencies": {
-    "purescript-lists": "~0.7.0",
-    "purescript-st": "~0.1.0",
-    "purescript-functions": "~0.1.0"
+    "purescript-lists": "^0.7.0",
+    "purescript-st": "^0.1.0",
+    "purescript-functions": "^0.1.0"
   },
   "devDependencies": {
-    "purescript-quickcheck": "~0.6.0"
+    "purescript-quickcheck": "^0.6.0"
   }
 }