added cops, a lightweight OPDS server for Calibre libraries

Signed-off-by: Gwenhael Le Moine <gwenhael.le.moine@gmail.com>
Merge branch 'master' of github.com:cycojesus/slackbuilds
added poche

Signed-off-by: Gwenhael Le Moine <gwenhael.le.moine@gmail.com>