This commit readds and updates the 1.x package from 1.1.4 to 1.1.6 which
also includes the needed command for migrating to 2.x
The module is adjusted to the version change, defaulting to radicale2 if
stateVersion >= 17.09 and radicale1 otherwise. It also now uses
ExecStart instead of the script service attribute. Some missing dots at
the end of sentences were also added.
I added a paragraph in the release notes on how to update to a newer
version.
