3 New monitoring plugins

RabbitMQ, Exim mail queue and Redis plugin.

v1.1.33

Remove /usr/bin/iostat option from iostat plugin

v1.1.32

Update nixstatsagent.py

mysql plugin fix

v1.1.31

Cast mysql values to float

v1.1.30

Bump version

v1.1.29

Improve logging

v1.1.28

Catch exception when thread can't be started

v1.1.27

Change logging levels

v1.1.26: Merge pull request #20 from AVBIT/patch-1

Update ping.py

v1.1.25

Bump version