Increment version to 4.4.2.
Add release notes for 4.4.2.
Log error message when can't set the language locale due to it not being supported by operating system.
Exporting wrong environment variable in apachectl for language locale.
Change default language locale to C.UTF-8 as en_US.UTF-8 may not always be present.
The --https-only option of mod_wsgi-express was not redirect to HTTPS connection when --server-alias wasn't being used.
Deprecate --ssl-port in favour of new --https-port option as port isn't strictly SSL, but TLS.
Merge branch 'release/4.4.2'