Bump version to 1.1 and update date

Author: CodeFinder2

src/roslaunch2/__init__.py

@@ -3,7 +3,7 @@
 #
 #  Author: Adrian Böckenkamp
 # License: BSD (https://opensource.org/licenses/BSD-3-Clause)
-#    Date: 08/06/2020
+#    Date: 24/10/2021
 
 # Import all submodules typically used in launch modules:
 from .group import *
@@ -21,7 +21,7 @@
 
 import argparse
 
-__version__ = '1.0'
+__version__ = '1.1'
 
 # Define the events in roslaunch2 that may be associated with custom actions:
 on_initialize = Observable()
@@ -84,7 +84,7 @@ def _argument_parser(parents=None):
     parser.add_argument('--no-colors', default=False, action="store_true",
                         help='Do not use colored output during processing')
     parser.add_argument('--version', action='version', version='%(prog)s v{version}, \
-                        (C) Copyright Adrian Böckenkamp, 05/11/2019'.format(version=__version__))
+                        (C) Copyright Adrian Böckenkamp, 24/10/2021'.format(version=__version__))
     parser.add_argument('-d', '--dry-run', default=False, action="store_true",
                         help='Just print the launch file to stdout, do not run roslaunch')
     parser.add_argument('package', nargs='?', help='ROS package name to search for <launchfile>')