Metadata rpm search and -latest option search

[simenon]

The current RPM package view shows package name/version/arch and repository. It would be nice if we can search through the full contents of the rpm metadata. The current search is just a filter on package name.

Also an option for a search of the latest version of a specific package would be nice. This for the case you 100 versions of the package and you want to see just the latest available. Similar to a yum search