Make sure to refresh the beans list every 10 minutes

 Useful because sometimes if the application restarts, jmxfetch might
read a jmx tree that is not completely initialized and would be missing
some attributes
Reset the statsd connection every 5 min fix #19
Merge branch 'master' of https://github.com/DataDog/jmxfetch
Remove unused variables
Add support for AtomicInt, AtomicLong and Objects

Fix #21 and Fix #25
Update README.md
Bump version to 0.3.0
Enhancement to allow value conversions
Add support for booleans