moke pump speed value more predictable
testing ReferenceType.toString
share same PublishEngine across all subscriptions of a client session;
code formating
add currentChannelCount property
add coercion function for simple type.
start implementation of Int64 type.
add int64 package
change strategy for Int64
fix variant value issue
#12 fix instructions to extract public key
#12 add ref
increase timeout for istanbul