chore(package): update shower-material to version 1.0.4

http://greenkeeper.io/

package.json

@@ -22,7 +22,7 @@
   ],
   "dependencies": {
     "shower-core": "^2.0.5",
-    "shower-material": "^1.0.3",
+    "shower-material": "^1.0.4",
     "shower-ribbon": "^2.0.3"
   },
   "devDependencies": {