The generate rpm script for latest WickrMe 4.0.5 has been verified on Fedora 26.
Start it in empty temporary folder. It will download latest WickrMe.zip and convert enclosed .dep files to .rpm.
Install both .rpm files the usual way by
dnf install WickrMe-*.x86_64.rpm wickr-qt-*.x86_64.rpm
Script has been updated to download latest version, currently 4.3.5.
Version change requires in only one place in the file.