fix a TypeError bugs like "Failed to execute ban jail 'pam-generic' action 'iptables-allports'"
getAttempt returns not a list (numeric), so by call of both lambda we have a TypeError except;
simplifying code;
DOC: Update ChangeLog fix for ip{,jail}failures action tags
ENH: Clearer warning with lines which failed to decode correctly
Merge pull request #723 from kwirk/decode-warning

ENH: Clearer warning with lines which failed to decode correctly
Merge branch 'master' of https://github.com/fail2ban/fail2ban into ban-time-incr
not used import removed