!!! Please update the rsb package accordingly. !!!

End users need not change very much. (Please update rsc/rsb
version numbers in CMakeLists.txt in your own C++ projects).

- Some (internal) changes for rsb0.14 compatibility

[.. code ...]
IPAACA_SIMPLE_TIMER_BEGIN(blockid1)
[... first code block to time ...]
IPAACA_SIMPLE_TIMER_END(blockid1, "Processing loop 1")
[...]

-> e.g.: "Processing loop - us elapsed: 15" to terminal

Several blocks can be timed in one stack frame using more blockids
(TODO: implement profiling mode that can be turned on/off)

Disabled removal of retracted IUs from InputBuffer to
match the Python version - since it is an item of discussion
that will be resolved in the next version anyway.

- OutputBuffer retracts all remaining live IUs on destruction
- sends correct event type now
- fixed reference error for calling handlers
- setters properly check for retracted flag
- also added some missing checks for committed flag

- OutputBuffer retracts all remaining live IUs on destruction
- sends correct event type now
- fixed reference error for calling handlers
- setters properly check for retracted flag
- also added some missing checks for committed flag

Also removed stray cout lines

Use with Locker, possible in a dedicated stack frame, like this:
// ... code ...
{ // open stack frame
	Locker locker(iu->payload());
	iu->payload()["a"] = "string";
	iu->payload()["b"] = "simultaneouslySentString";
} // close stack frame, sending the update

Also renamed some functions (preserving old names as deprecated aliases)

Also changed constructors of PayloadEntryProxy to protected.

Create doxygen documentation thus:
$ cd docs
$ doxygen ipaacaCpp.Doxyfile

Address mode must be selected explicitly using as_map/as_list, like so:
  for (auto value: iu->payload()["listItem"].as_list()) { .... }
  for (auto kv_pair: iu->payload()["mapItem"].as_map()) { .... }
Generic size() function (reports 0 for non-structured types)

PayloadTypeConversionError thrown if (trimmed) string parse is
incomplete; comparison operators == and != catch this error though.

Setting default channel name and default payload type works OK

Sniffer: only display quotes for string-type payload values
Injector: using unicode() and catching errors

TODO: compatibility with STR legacy payloads; more varied
access to inner payload objects (e.g. push_back)