[Bug 25708] Should not force to configure a mail account to use the calendar

[Andrew Slack]

Public bug report changed:
https://launchpad.net/malone/bugs/25708

Comment:
A partial workaround is to disable certain plugins, but I found this
made Evolution unstable, and every now and then it would crash. After it
had crashed, it brought up the email wizard again. In the end the
easiest thing was to configure a non-existent account then set it
offline. I agree this needs fixing, but this is a usable workaround in
the meantime.