CuratorFramework is started immediately 

Start framework in the ctor to allow other bundles to interact with
zookeeper during their run() method.
Merge pull request #5 from fexbraun/startFrameworkInConstructor

CuratorFramework is started immediately
Merge branch 'master-upstream'

Conflicts:
	src/main/java/io/dropwizard/discovery/manage/CuratorManager.java