corrected spelling error in README.md
updated README.md

removed libjson-perl from the apt-get instructions since it gets already 
installed by install.debian.sh script
added some doku to the install.debian.sh
Merge remote-tracking branch 'origin/master'
added Doku to the dbm.cfg Config file
added further doku to install.debian.sh
Merge remote-tracking branch 'upstream/master'
added Helping user instruction output to getMysqlLayout.pl
Merge pull request #5 from richi235/master

Added some Doku comments and improved README.md