Merge pull request #77 from NiteshKant/2.x

Upgraded to karyon 2.1.00-RC5
Fix Servo tags to be class/id
Merge pull request #78 from mattrjacobs/fix-servo

Fix Servo tags to be class/id
Making appname used by archiaus configurable while creating karyon zuul server.
Merge branch '2.x' of https://github.com/Netflix/zuul into 2.x