updating to latest IOCipher release
update cacheword for latest
add new interface methods to support session refresh
fixing issues with null last_message being insert
we want to keep the last message around so it shows up
but this code formerly would always insert a null message to bump
the chat to the top
improving code for network state changes
reconnect/reinit code tuning
remove unnecessary synchronization
use the Apache hex decoder - it works better
fix network connectivity check code
fix IOCipher mount code for new API update
fix network connectivity check code
don't create a new session, just use the existing one (API change)
small updates for chat session management
update to avatar loading code - handle exception