added logstash installation to bootstrap script.
fixed logstash.conf template name
install vagrant plugin only if specified with argument
add a log4j pattern layout to be used with file appender as logstash input.
Merge branch 'develop' into feature/cosmo_logstash
add a log4j pattern layout to be used with file appender as logstash input.
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
removed log4j version
fixed pattern layout for logstash
remove logstash debug output and fix java installation call in bootstrap script
travis
Merge pull request #92 from CloudifySource/feature/cosmo_logstash

cosmo logstash integration in management machine