pre-liminary release options, and increase version number to 2.6

..at all: please review the release notes and change at will, i just tried to collect as much info as possible from the commit messages

git-svn-id: svn://svn.code.sf.net/p/pinmame/code/trunk@3568 6f51dfdd-75df-4273-8f3b-818b1e6aa8bf
add additional paranoia-tests to PinDMD code and output error messages

git-svn-id: svn://svn.code.sf.net/p/pinmame/code/trunk@3569 6f51dfdd-75df-4273-8f3b-818b1e6aa8bf