* lukas/otp/add-dialyzer-make-target/OTP-15915:
  otp: Add make dialyzer and make xmllint documentation
  Add 'make dialyzer' target to top and apps

To provide more info when analyzing failed test cases
an "event" queue (of max size 10) is added to both the
test MG and MGC. This event queue is printed when the
process exist.
Also, the multi_ack_timeout is wonky, so add anther
platform (sunos) to the skip list...

Adjusted some timeouts...
Also, add time stamp to the 'delivery' printouts.

When cancel'ing a timer, the ok return is either:

     ok

or

	{ok, Remaining}

The test case did not handle this (expected 'ok').

When waiting for the server command handler to start
listening, wait only for so long (5 seconds) and if
it has not managed to start listening before then,
we *skip* (because something is wrong with the *system*).

It looked like two messages was received in the "wrong" order,
cuasing the request_and_reply_plain test case tro fail (on
a windows machine).
On closer inspection, the reason was that an "unconditional"
receive was made when waiting for a (disconnect) callback.
But instead we received a secondary message. So, remove
the unconditional receive and instead introduce a timeout
(10 seconds).