Can define  with env.host
Allow override port value with env.port
Initialize variables to zero and use sum of all nodes instead of last one
Merge pull request #2 from dsavineau/master

Allow override $host,$port with env.{host,port} and Fix values calculation
Merge pull request #3 from PeerJ/master

add index total stats
Fixed working for elasticsearch 1.0
Merge pull request #4 from y-ken/support_es_1.x

Add support elasticsearch 1.x
Fixed: 'Max open files' as variant number
Remove usuless comment
Fixed translog directory detection
Update description
Add README
Update README
Fixed graph_category

graph_category is should be elasticsearch