added logstash installation to bootstrap script.
fixed logstash.conf template name
install vagrant plugin only if specified with argument
CLOUDIFY-2176 change node policies to be a list and not a map
make travis build something
Merge pull request #90 from CloudifySource/feature/CLOUDIFY-2176-policies-list

Change plans to be lists
CLOUDIFY-2177 rename 'application_template' to 'blueprint'
add a log4j pattern layout to be used with file appender as logstash input.
Merge pull request #91 from CloudifySource/feature/CLOUDIFY-2177-application-template-to-blueprint

Rename "application_template" to "blueprint"
Merge branch 'develop' into feature/cosmo_logstash
add a log4j pattern layout to be used with file appender as logstash input.
make travis build something
Adjust logstash configuration for log file format.
Adjust logstash configuration for log file format.
added log4j to pom.xml.
added log4j to pom.xml.
events and logstash config adjustments.
fixed unit tests
Merge branch 'develop' into feature/cosmo_logstash
removed log4j version