Added Linux install steps, plus other minor tweaks
Updated table of contents in README
Add influxDB support for mon-api.
Merge branch 'master' of https://github.com/hpcloud-mon/mon-vagrant
Add database_type for InfluxDB support.
Merge pull request #9 from hpcloud-mon/feature/mon-thresh-cluster

Move to using storm in all setups even single node setups
Added running of the Threshold roles to the cluster script.
Updated for hosts/ips of secondary cluster.
Merge branch 'feature/cluster_refinements' of github.com:hpcloud-mon/mon-vagrant into feature/cluster_refinements