Rebase to 8.8.0
- resolves: rhbz#1069690
- drop patches merged upstream
- version the dependency on liblognorm-devel
- enable mmcount, mmexternal modules,
remove imdiag, omruleset and pmrfc3164sd modules
resolves: rhbz#1156359
- add dos2unix to build requirements
- make the build process more verbose
- in accordance with an upstream change, the rsyslog service is now
restarted automatically upon failure
- adjust the default configuration file for the removal of
/etc/rsyslog.d/listen.conf by the systemd package
resolves: rhbz#1116864
- disable the imklog module by default; kernel messages are read from journald
resolves: rhbz#1083564
- if there is no saved position in the journal, log only messages that are
received after rsyslog is started; this is a safety measure to prevent
excessive resource utilization
- use documentation from the standalone rsyslog-docs project
- move documentation from all subpackages into a single directory
- mark the recover_qi.pl script as documentation