kartoza/docker-qgis-server — pull request #4 by mbernasocchi (2014-11-27 13:27:36+00:00)
Title: changed qgis-mapserver to qgis-server

http://qgis.org/debian/dists/trusty/main/binary-amd64/Packages (and 386) report two packages. qgis-mapserver uses qgis 2.4. qgis-server is marked as:
Replaces: qgis-mapserver
Provides: qgis-mapserver