Release 0.1.41

Release 0.1.41

* Remove useless socket description timeout initialization
* Check sockets received from services
* Cynara socket tests
* Make SocketDescription getters const
* Validate cynara sockets
* Refrain from retrying close(int) (per man 2 close)
* Catch exceptions before returning to cynara
* Use eventfd instead of pipes for notifications
* Add randomized socket manager stress test
* Prevent writing to a socket marked as closed
* Refactor SocketManager's timeout queue
* Add timeout queue stress test
* Add check for connection counter in the server
* Start SocketManager as not working

Change-Id: I40682e7d061bbc4e522b1193b328e81abbe6e8e9