add LibreJS tags to JavaScript

Fixes #38

static/js/bin.js

@@ -1,3 +1,5 @@
+// @license magnet:?xt=urn:btih:1f739d935676111cfff4b4693e3816e664797050&dn=gpl-3.0.txt GPL-v3-or-Later
+
 var navlist = document.getElementById("info").getElementsByClassName("right")[0];
 
 init();
@@ -53,3 +55,5 @@ function wrap(ev) {
         document.getElementById("codeb").style.whiteSpace = "pre";
     }
 }
+
+// @license-end

static/js/bin_hljs.js

@@ -1,2 +1,6 @@
+// @license magnet:?xt=urn:btih:1f739d935676111cfff4b4693e3816e664797050&dn=gpl-3.0.txt GPL-v3-or-Later
+
 hljs.tabReplace = '    ';
 hljs.initHighlightingOnLoad();
+
+// @license-end

static/js/dropzone.js

@@ -1,4 +1,4 @@
-
+// @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt Expat
 /*
  *
  * More info at [www.dropzonejs.com](http://www.dropzonejs.com)
@@ -1727,3 +1727,4 @@
 
 }).call(this);
 
+// @license-end

static/js/upload.js

@@ -1,3 +1,5 @@
+// @license magnet:?xt=urn:btih:1f739d935676111cfff4b4693e3816e664797050&dn=gpl-3.0.txt GPL-v3-or-Later
+
 Dropzone.options.dropzone = {
 	init: function() {
 	},
@@ -93,3 +95,5 @@ Dropzone.options.dropzone = {
 	dictDefaultMessage: "Click or Drop file(s)",
 	dictFallbackMessage: ""
 };
+
+// @end-license