HUB-65 Add URN support to hAPI java
add filter field in hcommand and upadate services getLastMessage, getTread(s), getRelevantMessage
HUB-71 set actor to session in unsubscribe
add context in connect
set session to hnode in getSubscription
fix bug on cmd name (case sensitive)
change all the date format to timestamp
remove joda time and add timestamp long in API
remove jodatime in pom
update HubotSDK to V0.6
update the Bots
update the example
remove joda time
add ignore logger