src/avrerror.h: fix a number of compilation warnings.
src/avrerror.cpp: fix MESSAGE handling.
src/avrerror.cpp: simplify plain messages.
Use avr_message() for verbose messages.

This enhances encapsulation and simplifies code, both of which are
generally considered to be a good thing.
Update examples/stdiodemo/README.
Add yet another example, simple_serial.

This example is extremely simple, it does nothing fancy, breath taking
or showing advanced coding skills. It also depends on neither TCL nor
Python. It's purpose is to exercise the UART serial port and to show
how to make this port available in a simulation _without_ altering the
binary.

The code is tested on real hardware already and works just as expected.
Swap -v and -V command line parameters.

About every tool on this planet uses a lowercase v for "verbose",
do it here, too.
remove unused doc/mdate-sh script

It's maybe a relict of transformation from simulavr to simulavrxx.
start implementing core dump feature
Bugfix: doc/mdate-sh have to be ignored by git
Implement core dump, part I
implement core dump, part II
implement core dump: add EEPROM dump and update doc
implement core dump: update simulavr.texi
clean up: remove config directory, isn't used anymore
Add tool versions to delivery check report
Bugfix: log2html.py-Script
Bugfix: write a empty message, if repo status is clean
Rewrite delivery-check script to be more stable on Mingw
Bugfix delivery-check for msys