aggregation report on shutdown, StagemonitorPlugin is now an abstract class

(internal breaking change)
version updates
report aggregate metrics to elasticsearch on shutdown
another version update
fixed configurationSourceProfiles label
enlarged widget
separate template file for each tab, integrated c3
dynamically load values
switched from c3 to flot
added gc graph, refinements
introduced metrics plugin system
check if Sigar is working to avoid a UnsatisfiedLinkError
refactoring, request plugin
started with disabling graphs (not yet working)
deselect works now, working on throughput graph
show average response time and throughput
refactoring javascript
started with timerTableRenderer
made timerTableRenderer.js work