Collector via Zipkin proto; 1-click-run

Docker and more lightweight collector (#2)

• Add docker or scripts for building & running everything (Wildfly, MySQL, Zipkin)
• Remove uneeded code & dependencies
• update to use Zipkin reporter

• use jaeger-spans->zipkin-server adapter
• composite reporter: kensu spans & zipkin

• update how process context is sent
• add auth via Header
• Move config to environment variables so jar could be precompiled

Use non standard port for MySQL docker (so it doesn't clash if there's one already) #5