* master merge
* wip
* avoid deadlocks
* tcp limits
* expose client field in chronosstream
* limit incoming connections
* update with new listen api
* fix release
* don't override peerinfo in connection
* rework transport with accept
* use semaphore to track resource ussage
* rework with new transport accept api
* move events to conn manager (#373)
* use semaphore to track resource ussage
* merge master
* expose api to acquire conn slots
* don't fail expensive metrics
* allow tracking and updating connections
* set global connection limits to 80
* add per peer connection limits
* make sure conn is closed if tracking failed
* more descriptive naming for handle
* rework with new transport accept api
* add `getStream` hide `selectConn`
* add TransportClosedError
* make nil explicit
* don't make unnecessary copies of message
* logging
* error handling
* cleanup semaphore
* track connections properly
* throw `TooManyConnections` when tracking outgoing
* use proper exception and handle conventions
* check onCloseHandle for nil
* revert internalConnect changes
* adding upgraded flag
* await stream before closing
* simplify tracking
* wip
* logging
* split connection limits into incoming and outgoing
* further streamline connection limits split counts
* don't use closeWithEOF
* move peer and conn event triggers from switch
* wip
* wip
* wip
* merge master
* handle nil connections properly
* add clarifying comment
* don't raise exc on nil
* no finally
* add proper min/max connections logic
* rebase master
* merge master
* master merge
* remove request timeout
should be addressed in separate PR
* merge master
* share semaphore when in/out limits arent enforced
* merge master
* use import
* pass semaphore to trackConn
* don't close last conn
* use storeConn
* merge master
* use storeConn
Dmitriy Ryajov