add authorization hooks to router classes
allow override router class
fix broker
add action to string map
Follow-up to fix for #217 - import aliases cannot be used by from style imports
Merge pull request #236 from jkasky/master

Follow-up to fix for #217 - import aliases cannot be used by from style ...
handle internal auth errors
allow setting fixed auth on router app sessions
bump version; update changelog
fix default arg
add str() output for logging to all types
no default for authprovider; add exception for nonexistant role
polish
polish
remove log output
polish error messages
fix a number of typos
Prepare for subscription seperation based on subscribe options

All subscriptions with the same subscribe options are given the same
subscription id so the events can be send in batches.
Changed messages and types classes to handle meta events.
Implemented meta events.