Update version number

CHANGELOG.md

 # Change Log
 
-## Version ??? - soon
+## Version 1.2.2 - 2021-04-25
 
-- Changed planning break from midnight to 4am
+- Changed planning break from midnight to 4am-8am
+- Added "back to top" links to activity pages
 - Make slot start field non-nullable to simplify code
+- Added planning caption
 
 ## Version 1.2.1 - 2021-04-24
 

site_settings/constants.py

 # The website version number
-WEBSITE_VERSION = "1.2.1"
-WEBSITE_VERSION_DATE = "2021-04-24"
+WEBSITE_VERSION = "1.2.2"
+WEBSITE_VERSION_DATE = "2021-04-25"
 
 WEBSITE_FULL_VERSION = "{} - {}".format(
 	WEBSITE_VERSION, WEBSITE_VERSION_DATE