chore: fix copyright dates and delete dpx

Author: zmx27

src/diffpy/__init__.py

@@ -1,10 +1,10 @@
 #!/usr/bin/env python
 ##############################################################################
 #
-# (c) 2025 The Trustees of Columbia University in the City of New York.
+# (c) 2013-2025 The Trustees of Columbia University in the City of New York.
 # All rights reserved.
 #
-# File coded by: Billinge Group members and community contributors.
+# File coded by: Xiaohao Yang and Billinge Group members.
 #
 # See GitHub contributions for a more detailed list of contributors.
 # https://github.com/diffpy/diffpy.srxconfutils/graphs/contributors

src/diffpy/srxconfutils/__init__.py

@@ -1,18 +1,18 @@
 #!/usr/bin/env python
 ##############################################################################
 #
-# (c) 2025 The Trustees of Columbia University in the City of New York.
+# (c) 2013-2025 The Trustees of Columbia University in the City of New York.
 # All rights reserved.
 #
-# File coded by: Billinge Group members.
+# File coded by: Xiaohao Yang and Billinge Group members.
 #
 # See GitHub contributions for a more detailed list of contributors.
 # https://github.com/diffpy/diffpy.srxconfutils/graphs/contributors
 #
 # See LICENSE.rst for license information.
 #
 ##############################################################################
-"""Configuration utilities for dpx project.
+"""Configuration utilities for project.
 
 Part of xPDFsuite
 """

src/diffpy/srxconfutils/version.py

@@ -1,10 +1,10 @@
 #!/usr/bin/env python
 ##############################################################################
 #
-# (c) 2025 The Trustees of Columbia University in the City of New York.
+# (c) 2013-2025 The Trustees of Columbia University in the City of New York.
 # All rights reserved.
 #
-# File coded by: Billinge Group members.
+# File coded by: Xiaohao Yang and Billinge Group members.
 #
 # See GitHub contributions for a more detailed list of contributors.
 # https://github.com/diffpy/diffpy.srxconfutils/graphs/contributors  # noqa: E501