Ok... I found this on Sourceforge... It appears to be a list of packages included with OMV 2.1 Stoneburner...
This is what I extracted from the file about Owncloud...
Maintainer: Volker Theile <firstname.lastname@example.org>
Depends: openmediavault (>= 2.0.15), owncloud (>= 6.0.4), locales
Description: OpenMediaVault ownCloud plugin ownCloud gives you universal access to your files through a web interface or WebDAV. It also provides a platform to easily view & sync your contacts, calendars and bookmarks across all your devices and enables basic editing right on the web.
Does this line above ( Depends: openmediavault (>= 2.0.15), owncloud (>= 6.0.4), locales ) mean that the version of Owncloud that gets installed with this plugin is version 6.0.4...? or that it could be any current version that is > or = to version 6.0.4...??