Fix previous commit
Add --exclude-line option for excluding log entries with a regex based on the full log line. Thanks to ferfebles for the feature request.
Merge pull request #155 from brunomgalmeida/master

fixed calendar display
Update changelog
Update version to 5.1
Fix remote logfile parsing. Thanks to Herve Werner for the report.
Update changelog about missing patches to v5.1
Update documentation to inform that the xz utility should be at least in version 5.05 to support the --robot option. Thanks to Xavier Millies-Lacroix for the report.