Do not start IMAP if MX is not enabled
Merge remote-tracking branch 'chiiph/bug/disable_mail' into develop
Set the standalone flag before using it

This reorders imports and delays them after the args are processed.
Merge remote-tracking branch 'chiiph/bug/set_standalone_properly' into develop
Add minimal working chat application, QML based.
Add README for the new chat feature.
Integrate the chat window with the leap client.
Move chat to new namespace.
Add test soledad chat logs storage.