Doc examples with zmq_msg_close usage - parameter is 'zmq_msg_t *'

Documentation examples for zmq_msg_get and zmq_msg_more functions have an
incorrect call to zmq_msg_close function - with 'zmq_msg_t' as a parameter
despite 'zmq_msg_t *' is required, so it is impossible to compile these
examples properly.

Also for zmq_msg_get example - declaration of zmq_msg_t variable is added
(like it is done in other examples).
Merge pull request #733 from mingulov/doc

Doc examples with zmq_msg_close usage - parameter is 'zmq_msg_t *'
Merge pull request #734 from hintjens/master

Fixed issue 578
zmq: add TIPC manpage

Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Merge pull request #735 from Hugne/tipc_docs

zmq: add TIPC manpage
zmq: change TIPC default lookup domain when connecting

By default, TIPC uses a closest first approach to find
a publication that can satisfy your connection request.
Any publication on the local node will automatically
be chosen for all requests, even if you're trying to
spread it out over multiple machines.
We fix this by widening the default lookup scope.

Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Merge pull request #736 from Hugne/lookup_domain

zmq: change TIPC default lookup domain when connecting
Merge pull request #737 from hintjens/master

Removed over-long pauses in tests
Fix race condition on shutdown
Merge pull request #738 from ricnewton/master

Fix race condition on shutdown
Fix for issue 574