Add support for installing graphite in a custom location.
Allowing to set whisper data dir. This is useful on EC2 when root is small and  is large.
Fixes to get custom prefix install working across Ubuntu and CentOS.
Merge branch 'master' of https://github.com/jondot/chef-graphite into jondot-master

Conflicts:
	templates/default/carbon.conf.erb
	templates/default/local_settings.py.erb
v0.1.0
added in support for amazon linux
Fixes to support Amazon Linux.
v0.1.1
Merge remote-tracking branch 'upstream/master'

Conflicts:
	recipes/dashboard.rb