Moved image prio to correct element
Removed channelId in publication, as events may publish ot different channels and devices
Added publication information ot event that was previously onlly on material

Previous version did not make any difference between rights and
publication, a right was an implicit publication.
These changes will mitigate this. Now events do explicitly state the
publication times per cannel, device and pricveGroup
Fixed error in previous commit renaing type in publish.xsd
Save before merge
Merged rights-changes into develop
Fixed error in regexp for tagNameType