rpmrebuild 2.7 (stable) released

rpmrebuild is a tool to build an RPM file from a package that has already been installed.

the changelog is :

* patch from Andreas Kainz for package file checking
* add new unset_tag plugin
* add support for rpm version 5 (mandriva)
* fix -l / --list-plugin option
* add support of posix capability
* add new un_prelink plugin (suggest from Han Holl)
* add RPMREBUILD_OPTS environment variable
* fix problem with different architecture (build 32bit on 64bits)
* fix bad arch on gpg-pubkey packages