Update doc link and removed jQuery dependency

package.json

@@ -14,7 +14,6 @@
     "d3-dsv": "^1.0.0",
     "diff-match-patch": "^1.0.0",
     "es6-promise": "^3.2.1",
-    "jquery": "^2.2.0",
     "less": "^2.7.1",
     "marked": "^0.3.5",
     "moment": "^2.11.2",
@@ -28,7 +27,6 @@
     "@jupyterlab/extension-builder": "^0.8.1",
     "@types/d3-dsv": "^1.0.29",
     "@types/expect.js": "^0.3.29",
-    "@types/jquery": "^2.0.32",
     "@types/marked": "0.0.28",
     "@types/mathjax": "0.0.31",
     "@types/mocha": "^2.2.32",

src/faq/plugin.ts

@@ -313,7 +313,7 @@ class FaqWidget extends VDomWidget<FaqModel> {
           ),
           ' and ',
           h.a({className: ANCHOR_CLASS,
-               href: 'http://jupyter.org/jupyterlab/',
+               href: 'https://jupyterlab.github.io/jupyterlab/',
                target: '_blank'},
                'documentation'
           ),