CHG: upgrade jQuery from 1.11.1 to 1.12.4

Contains no breaking changes.

Full changelogs:

- 1.11.1 - 1.11.3: https://github.com/jquery/jquery/compare/1.11.1...1.11.3
- 1.12.0: http://blog.jquery.com/2016/01/08/jquery-2-2-and-1-12-released/
- 1.12.0 - 1.12.4: https://github.com/jquery/jquery/compare/1.12.0...1.12.4

CHANGELOG

@@ -4,6 +4,7 @@
 Version 1.1.24 under development
 --------------------------------
 
+- Chg #xxxx: Upgraded jQuery to 1.12.4 (marcovtwout)
 - Bug #4339: "There is no active transaction" when transaction is autocommitted (twisted1919)
 
 Version 1.1.23 December 2, 2020

framework/vendors/README.html

@@ -19,7 +19,7 @@ Please refer to the detailed license information as shown below:
 </tr>
 
 <tr>
-  <td><a href="http://jquery.com">jQuery 1.11.1</a></td>
+  <td><a href="https://jquery.com/">jQuery 1.12.4</a></td>
   <td><a href="jquery/LICENSE.txt">MIT</a></td>
   <td>most JavaScript-related functionalities</td>
 </tr>

framework/vendors/jquery/LICENSE.txt

@@ -1,5 +1,13 @@
-Copyright 2014 jQuery Foundation and other contributors
-http://jquery.com/
+Copyright jQuery Foundation and other contributors, https://jquery.org/
+
+This software consists of voluntary contributions made by many
+individuals. For exact contribution history, see the revision history
+available at https://github.com/jquery/jquery
+
+The following license applies to all parts of this software except as
+documented below:
+
+====
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the
@@ -18,4 +26,11 @@ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
-WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+====
+
+All files located in the node_modules and external directories are
+externally maintained libraries used by this software which have their
+own licenses; we recommend you read them, as their terms may differ from
+the terms above.