bump the version

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
update the changelog

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
1.5.3
fix host resolution for jenkins builds

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
add docs link to help menu

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
Merge pull request #196 from alfredodeza/8534

conditional lines for custom repo files
create a helper function to install plugin priorities

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
if adjusting repos, install yum priorities

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
add the priority line to the repo files

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>