Update CodeMirror to version 5.49.0 (#8381)

* Update CodeMirror to version 5.49.0

* Update CodeMirror versions in librejs and VERSIONS

public/vendor/plugins/codemirror/mode/textile/index.html

@@ -9,7 +9,7 @@
 <script src="textile.js"></script>
 <style>.CodeMirror {background: #f8f8f8;}</style>
 <div id=nav>
-  <a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png"></a>
+  <a href="https://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png"></a>
 
   <ul>
     <li><a href="../../index.html">Home</a>

public/vendor/plugins/codemirror/mode/textile/test.js

@@ -1,5 +1,5 @@
 // CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: http://codemirror.net/LICENSE
+// Distributed under an MIT license: https://codemirror.net/LICENSE
 
 (function() {
   var mode = CodeMirror.getMode({tabSize: 4}, 'textile');
@@ -39,12 +39,12 @@
       '3 ** 3 = 27');
 
   MT('simpleLink',
-      '[link "CodeMirror":http://codemirror.net]');
+      '[link "CodeMirror":https://codemirror.net]');
 
   MT('referenceLink',
       '[link "CodeMirror":code_mirror]',
       'Normal Text.',
-      '[link [[code_mirror]]http://codemirror.net]');
+      '[link [[code_mirror]]https://codemirror.net]');
 
   MT('footCite',
       'foo bar[qualifier [[1]]]');

public/vendor/plugins/codemirror/mode/textile/textile.js

@@ -1,5 +1,5 @@
 // CodeMirror, copyright (c) by Marijn Haverbeke and others
-// Distributed under an MIT license: http://codemirror.net/LICENSE
+// Distributed under an MIT license: https://codemirror.net/LICENSE
 
 (function(mod) {
   if (typeof exports == "object" && typeof module == "object") { // CommonJS
@@ -203,7 +203,7 @@
     single: {
       bc: "bc",
       bq: "bq",
-      definitionList: /- [^(?::=)]+:=+/,
+      definitionList: /- .*?:=+/,
       definitionListEnd: /.*=:\s*$/,
       div: "div",
       drawTable: /\|.*\|/,