SWITCHYARD-2220 Unable to find BeanManager error on executing mqtt quickstart on karaf

Added TCCL switching in a mqtt service binding route
SWITCHYARD-2170 Handle null fault strings returned from SAAJ codebase
SWITCHYARD-2252 Message headers are unexpectedly converted to lower-case in Camel service
SWITCHYARD-2261 infinispan not configurable for end users

Made infinispan XML and JGroups XML configurable for karaf