Fix "Link" button on messages

- Add clipboard.js to bower
- Add pop-out section that populates with URL
- Add copy to clipboard button, hover confirmation

themes/bootstrap/public/bower_components/clipboard/package.js

@@ -0,0 +1,12 @@
+// Package metadata for Meteor.js.
+
+Package.describe({
+  name: "zenorocha:clipboard",
+  summary: "Modern copy to clipboard. No Flash. Just 2kb.",
+  version: "1.5.9",
+  git: "https://github.com/zenorocha/clipboard.js"
+});
+
+Package.onUse(function(api) {
+  api.addFiles("dist/clipboard.js", "client");
+});