Fixing Issue #319

Fixing Issue #319 preventing unoconv from being installed in CentOS. I am not sure if "_with_openoffice2" needs changing too.
Icinga: Update to 1.11.0, mailinglists, download url.
Icinga Web: Update to 1.11.0, mailinglists, download url.
Merge pull request #324 from nikosp77/patch-2

Fixing Issue #319
icinga: Update icinga.spec: groupadd

Updated groupadd steps to use -r like the useradd step already does. This creates the groups as system groups instead of user groups.
Merge pull request #330 from hoag/patch-1

icinga: Update icinga.spec: groupadd
Update libserf to 1.1.1.
Revert accidental premature merge from nkadel-libserf.
Add nagios-plugins-check_email_delivery package for Repoforge.
Move svn2cl.spec to its own subdirectory.
Updaate to subversion-1.6.spec.
Provide subversion-1.8.x patches and spec files.
Update subversion-1.7.spec to subverson-1.7.13.
Update to subversion-1.7.14, note that EL4 and EL5 are now disabled due to Python dependencies.
Update to subversion-1.8.5, discard subversion-1.8.0-svnmucc.patch.
Update subversion-1.7.spec to subversion 1.7.16 release.
Update libserf to 1.1.1.
Revert accidental premature merge from nkadel-libserf.
Provide subversion-1.8.x patches and spec files.
Update to subversion-1.8.5, discard subversion-1.8.0-svnmucc.patch.