Get ready for release 1.2.3

Author: rocky

CHANGES.rst

@@ -1,7 +1,7 @@
 CHANGES
 =======
 
-1.2.2
+1.2.2-1.2.3
 -----
 
 Redo for packaging problems.

MANIFEST.in

@@ -5,5 +5,6 @@ include COPYING.txt
 include FUTURE.rst
 include Makefile
 include mathics_scanner/Makefile
+include requirements-full.txt
 recursive-include mathics_scanner *.py
 recursive-include test *.py

mathics_scanner/version.py

@@ -1,8 +1,7 @@
 # -*- coding: utf-8 -*-
 
-
 # This file is suitable for sourcing inside POSIX shell as
 # well as importing into Python. That's why there is no
 # space around "=" below.
 # fmt: off
-__version__="1.2.3.dev0"  # noqa
+__version__="1.2.3"  # noqa

setup.py

@@ -82,7 +82,7 @@ def subdirs(root, file="*.*", depth=10):
     version=__version__,
     packages=["mathics_scanner", "mathics_scanner.generate"],
     install_requires=INSTALL_REQUIRES,
-    extra_requires=EXTRA_REQUIRES,
+    extras_require=EXTRA_REQUIRES,
     entry_points={
         "console_scripts": [
             "mathics-generate-json-table=mathics_scanner.generate.build_tables:main"