Create hot fix branch from 4.2.3
Fix a way in how we determine if a request was local or remote - we were string comparing the hostnames, change this to resolve the hostnames to their IP address and then compare that to be more foolproof. TRQ-1946.
TRQ-1978. Fix a segfault in BLCR checkpointing if pbs_server cannot be contacted.
Merge branch '4.2.3.1' of https://github.com/adaptivecomputing/torque into 4.2.3.1