CLA-780 Remove at_exit handler since Rails tests call at_exit blocks many times during a single test run
CLA-780 V1.2.1
CLA-780 Ignore connection and session exceptions since they are being thrown during a Rails Test process shutdown under JRuby
CLA-780 Start with root namespace
CLA-780 Ignore all Zookeeper exceptions on shutdown
Ensure passed in configuration hash is not modified
CLA-778 Handle partially registered services
CLA-797 When Zookeeper sends a change notification ignore Zookeeper::Exceptions::NoNode exceptions when the node was deleted before the new value could be retrieved
Merge branch 'v1' into v2

Conflicts:
	lib/ruby_skynet/version.rb
Upgrade to BSON V2