Adjusting fail2ban logwatch script to match lines from 0.9 as well

File itself includes additional log information about changes
Sample logfiles to test logwatch services script
BF: logwatch -- fixing up regex for 'already banned'
ENH: untabified and reindented entire script for sane formatting (no functional changes)
ENH: print rebans stats even if no "Failures" are logged, and reduce indentation in output
RF: moving logwatch setup/sample logs under files/logwatch
Merge pull request #782 from yarikoptic/bf/logwatch

logwatch file (original 1.5 version + fixes for change of logs in 0.9)
BF: made tests util digest.py friendly to python3
Merge remote-tracking branch 'origin/master'

* origin/master:
  RF: moving logwatch setup/sample logs under files/logwatch
  ENH: print rebans stats even if no "Failures" are logged, and reduce indentation in output
  ENH: untabified and reindented entire script for sane formatting (no functional changes)
  BF: logwatch -- fixing up regex for 'already banned'
  Sample logfiles to test logwatch services script
  Adjusting fail2ban logwatch script to match lines from 0.9 as well
We better check that installation doesn't cause any errors as well
Merge branch '_tent/cache-config-read' of https://github.com/sebres/fail2ban

* '_tent/cache-config-read' of https://github.com/sebres/fail2ban:
  code review, change log entries added;
  reset share/cache storage (if we use 'reload' in client with interactive mode)
  normalize tabs/spaces in docstrings;
  cache-config-read-v2 merged; logging normalized, set log level for loading (read or use shared) file(s) to INFO; prevent to read some files twice by read inside "_getIncludes" and by "read" self (occurred by only one file);
  code review; more stable config sharing, configurator always shares it config readers now;
  code review: use the same code (corresponding test cases - with sharing on and without it);
  rewritten caching resp. sharing of ConfigReader and SafeConfigParserWithIncludes (v.2, first and second level cache, without fingerprinting etc.);
  code review
  ConfigReader/ConfigWrapper renamed as suggested from @yarikoptic; + code clarifying (suggested also);
  Partially merge remote-tracking from 'sebres:cache-config-read-820': test cases extended, configurator.py adapted for test case.
  ENH: keep spitting out logging to the screen in LogCaptureTestCases if HEAVYDEBUG
  test case for check the read of config files will be cached;
  more precise by test
  ConfigWrapper class introduced: sharing of the same ConfigReader object between JailsReader and JailReader (don't read jail config each jail); sharing of the same DefinitionInitConfigReader (ActionReader, FilterReader) between all jails using that; cache of read a config files was optimized; test case extended for all types of config readers;
  config cache optimized - prevent to read the same config file inside different resources multiple times; test case: read jail file only once;
  test case for check the read of config files will be cached;
  caching of read config files, to make start of fail2ban faster, see issue #820
DOC: very minor (tabs/spaces)
Merge 'upstream/master' into sebres:ban-time-incr