repo a la volée Files

YUM based, on the fly package manipulation tool for CentOS 6


the only cmd:
# repo


requirements:

1) yum plugin: priorities
2) explicit definition of 'enabled' and 'prioroty' properties for each repository channel, in "/etc/yum.repos.d/*.repo" -files.

3) the 'repo' -file itself and all files under 'bin' subdirectory must chmod +x
4) the 'repo' file must be available on the path. recomended directory is: '/root/bin' (because of some hardcoded parts in the script...).