Align pingable: documentation, validation & unit testing with RFC 5943
Merge pull request #189 from job/master

Align pingable: documentation, validation & unit testing with RFC 5943
Log internal server error on invalid crowd uuid (should never happen)
refactoring abusecfinder
Merge branch 'master' into rdap

Conflicts:
	whois-query/src/main/java/net/ripe/db/whois/query/planner/AbuseCFinder.java