add proper doc file
renamed package storage_server/connected to storage_server/users because we're going to be dealing wiht some users who aren't connected
further cleansing of 'connected users' from storage_server
wip storage_server: keep user active, even with devices disconnected
added control port calls for idle users
fixed storage_server control port idle user commands
storage_server: periodic remove idle users
integrate block gc into storage_server
wip sql_proxy
added cride handling of E error messag
fix sql_proxy message type handling
don't combine message type and message size
use standard read and write in all sql_proxy types
tracked down password message problem
refactor Authenticate into a separate file
push through to ready for query
handle terminate message
use environment variables: PGHOSTADDR, PGPORT, PANDORA_DATABASE_HOST, PANDORA_DATABASE_PORT
ergo_proxy: check for minimum message size to avoid panics
handle protocol reply conflated wiht vocabulary