Implement Slick detection (#2171)

* Implement Slick detection

This can be tested [here](http://spacemacs.org/).

No icons :/

* Fix an alcohol-related typo :3

* Remove a missing icon

src/apps.json

@@ -8949,6 +8949,15 @@
       "script": "serving-sys\\.com/",
       "website": "http://sizmek.com"
     },
+    "Slick": {
+      "cats": [
+        12
+      ],
+      "html": "<link [^>]+(?:/([\\d.]+)/)?slick-theme\\.css\\;version:\\1",
+      "implies": "jQuery",
+      "script": "(?:/([\\d.]+))?/slick(?:\\.min)?\\.js\\;version:\\1",
+      "website": "http://kenwheeler.github.io/slick"
+    },
     "Slimbox": {
       "cats": [
         12