Added support for MySQL logfiles
Added testcase for MySQL date format to testcases/datedetectortestcase.py
and example of MySQL log file.
Replace the check_fail2ban script by a new one which respects the Nagios specs (like status, output, perfdata, help...).
Also add a README which includes the content of f2ban.txt (which is now removed)
fix the script name to check_fail2ban everywhere
change the license to GPLv2 + adapat text
Merge  'Update the check_fail2ban script' PR from https://github.com/labynocle/fail2ban

* 'master' of https://github.com/labynocle/fail2ban:
  change the license to GPLv2 + adapat text
  fix the script name to check_fail2ban everywhere
  Replace the check_fail2ban script by a new one which respects the Nagios specs (like status, output, perfdata, help...). Also add a README which includes the content of f2ban.txt (which is now removed)
Merge branch 'Support_for_mysql_log_example' of https://github.com/arto-p/fail2ban

* 'Support_for_mysql_log_example' of https://github.com/arto-p/fail2ban:
  Added testcase for MySQL date format to testcases/datedetectortestcase.py and example of MySQL log file.
  Added support for MySQL logfiles

Conflicts:
	testcases/datedetectortestcase.py -- conflictde with other added test cases
Adjusting previous PR (MySQL logs) according to my comments
ENH: for consistency (and future expansion ;)) -- rename to mysqld-auth