mailgraph-1.14-bp150.2.4

- Replace references to /var/adm/fillup-templates with new
  %_fillupdir macro (boo#1069468)

- Add PreReq: %insserv_prereq: as we still install init.d services
  and handle them in post/postun scriptlets, we're also responsible
  to ensure the (outdated) tools are in place.

- added mmailgraph_for_nagios-plugins-mailgraph.patch for
  nagios-plugins-mailstat package (allows to define statfile for
  nagios usage)
- specfile cleanup
- specfile license follows spdx format

- fix group
  o Productivity/Networking/Diagnostic
- cleanup macros
  o buildroot

- cleanup spec
- changelog to changes file

- some rpmlint fixes
  o no-changelogname-tag

- fixed defaults
- some rpmlint fixes
  o summary-not-capitalized (Badness: 63)
  o unversioned-explicit-self-provides (Badness: 10000)

- added missing rclink

- fixed Requires - smtpd should be postfix
- first run
- Upload to openSUSE BuildService