fallback to lowercase repo sections for Emperor

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
Merge pull request #225 from alfredodeza/8980

fallback to lowercase repo sections for Emperor
update the changelog

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
bump the version number

Signed-off-by: Alfredo Deza <alfredo.deza@inktank.com>
1.5.10