Merge pull request #407 from barnybug/master

Fix elasticsearch 0.90 fielddata stats.
Fixes #404, this adds in a way to specify a directory to load handlers from
PEP8
Tox is broken for python 2.5
add count_workers options to count number of workers, set False to default
Merge pull request #408 from huoxy/add-count-workers-support

add count_workers options to count number of workers
Merge branch 'master' of github.com:BrightcoveOS/Diamond
Option to filter published queues
Merge pull request #409 from pzinovkin/rabbitmq_queues

Option to filter published queues for RabbitMQ collector
Fix typo "handername" vs "handlername"

Solves NameError when using a configuration file to provide handlers.
Merge pull request #410 from duego/fix_handlers_typo

Fix typo "handername" vs "handlername"
add try..except to fix ProcessesResourceCollector
Merge pull request #411 from huoxy/fix-processesresource

add try..except to fix ProcessesResourceCollector
Add Kafka collector using mx4j
Merge pull request #413 from dctrwatson/kafka-collector

Add Kafka collector using mx4j
added passenger stats for phusion-passenger framework
Fix bug of breaking all of the remainings when one of the hosts fails

1. catch and handle possible exceptions raised when executing queries
2. log the errors and keep the remainings running
Merge pull request #416 from xupeng/fix-mysql-collector

Fix bug of breaking all of the remainings when one of the hosts fails
Merge pull request #414 from rohitjalan/master

Passenger Stats Added
Added celerymon monitoring