before we created img links like file:////usr/share for
absolute paths. now we create file:///usr/share.

decryptMessage is a method in otp and we should forward this information,
if we want to decrypt messages to CryptoMessageBlock.
Otherwise we get out of sync with what the user requested.

Differental Revision: https://phabricator.kde.org/D783

Differential Revision: https://phabricator.kde.org/D701

Differential Revision: https://phabricator.kde.org/D700

Differential Revision: https://phabricator.kde.org/D699

Differental Revision: https://phabricator.kde.org/D580

Differential Revision: https://phabricator.kde.org/D560

Differential Revision: https://phabricator.kde.org/D558

Differential Revision: https://phabricator.kde.org/D557

Differential Revision: https://phabricator.kde.org/D556

Differential Revision: https://phabricator.kde.org/D552

This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
techbase wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:

http://community.kde.org/Frameworks/GitOldHistory

If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
argument.

Branched from the monolithic repo, kdepim master branch, at commit
d0009536f24e8c7f4cc32a70936f5c25194e9a6f