Version 9.2 (bz 1891244)

- Unbundle widgetsnbextension (bz 1856311)
- Unbundle mathjax fonts (bz 1875606)
- Do not require the -doc subpackage from the main package (bz 1867123)
- Drop upstreamed patches: -ecl, -fes, -includes, -sagetex, -sigfpe, -sympy

sagemath-intersphinx.patch

@@ -1,9 +1,9 @@
 diff -up src/sage/docs/conf.py.orig src/sage/docs/conf.py
---- src/sage/docs/conf.py.orig	2019-09-29 17:03:11.000000000 -0600
-+++ src/sage/docs/conf.py	2020-01-02 11:19:45.125646695 -0700
-@@ -169,9 +169,8 @@ todo_include_todos = True
- python_version = sys.version_info.major
- intersphinx_mapping = {
+--- src/sage/docs/conf.py.orig	2020-10-24 11:37:59.000000000 -0600
++++ src/sage/docs/conf.py	2020-10-30 16:41:06.481017695 -0600
+@@ -189,9 +189,8 @@ def set_intersphinx_mappings(app, config
+ 
+     app.config.intersphinx_mapping =  {
      'python': ('https://docs.python.org/',
 -                os.path.join(SAGE_DOC_SRC, "common",
 -                             "python{}.inv".format(python_version))),
@@ -11,5 +11,5 @@ diff -up src/sage/docs/conf.py.orig src/sage/docs/conf.py
 +               '/usr/share/doc/python3-docs/html/objects.inv'),
 +    'pplpy': (PPLPY_DOCS, '/usr/share/doc/python3-pplpy/objects.inv')}
  
- def set_intersphinx_mappings(app):
-     """
+     # Add master intersphinx mapping
+     dst = os.path.join(invpath, 'objects.inv')