Merge branch 'feature/CLOUDIFY-2222-manager-rest' into feature/CLOUDIFY-2261-deployment-logs

Conflicts:
	vagrant/bootstrap_lxc_manager.py
	workflow-service/log4j.properties
CLOUDIFY-2222 better error handling
CLOUDIFY-2261 implemented events manager which loads events from files.
Merge branch 'feature/CLOUDIFY-2222-manager-rest' into feature/CLOUDIFY-2261-deployment-logs

Conflicts:
	manager-rest/manager_rest/resources.py
	workflow-service/log4j.properties
CLOUDIFY-2261 added route for querying deployment events.
CLOUDIFY-2261 handle general exceptions.
CLOUDIFY-2261 added events path to bootstrap script and testenv.
CLOUDIFY-2261 added events_path to manager rest bootstrap.
Merge pull request #99 from CloudifySource/feature/CLOUDIFY-2261-deployment-logs

Feature/cloudify 2261 deployment logs
CLOUDIFY-2222 fixed error message on bootstrap failure
Merge branch 'feature/CLOUDIFY-2222-manager-rest' of github.com:CloudifySource/cosmo-manager into feature/CLOUDIFY-2222-manager-rest
CLOUDIFY-2222 fixed argument naming
CLOUDIFY-2222 fixed args passing in server.py
CLOUDIFY-2222 fixed events_path passing from args to events_manager
CLOUDIFY-2222 fixed events json format.
CLOUDIFY-2222 added workflow states logging (events) and ability to provide tags when submitting workflows.
Merge remote-tracking branch 'origin/feature/CLOUDIFY-2222-manager-rest' into feature/CLOUDIFY-2222-manager-rest