Tighten a bit woocommerce detection (#2178)

src/apps.json

@@ -10808,14 +10808,14 @@
       },
       "html": [
         "<!-- WooCommerce",
-        "<link rel='[^']+' id='woocommerce-(?:layout|smallscreen|general)-css'  href='https?://[^/]+/wp-content/plugins/woocommerce/assets/css/woocommerce(?:-layout|-smallscreen|)\\.css?ver=([\\d.]+)'\\;version:\\1"
+        "<link rel='[^']+' id='woocommerce-(?:layout|smallscreen|general)-css'  href='https?://[^/]+/wp-content/plugins/woocommerce/assets/css/woocommerce(?:-layout|-smallscreen)?\\.css?ver=([\\d.]+)'\\;version:\\1"
       ],
       "icon": "WooCommerce.png",
       "implies": "WordPress",
       "meta": {
         "generator": "WooCommerce ([\\d.]+)\\;version:\\1"
       },
-      "script": "woocommerce(?:\\.min)?\\.js(?:\\?ver=([0-9.]+))?\\;version:\\1",
+      "script": "/woocommerce(?:\\.min)?\\.js(?:\\?ver=([0-9.]+))?\\;version:\\1",
       "website": "http://www.woothemes.com/woocommerce"
     },
     "Woopra": {