[db] adds bug comment to asciiplot
[db] fixes bugs in the dava.xml exmaple
[db] fixes the snap dumb placement generator
[db] working version of ros_parser
[db] adds some commenting into the code
[db] converts property() to @property for Edge and Snaps for better
readibility
[db] removes test functionality from asciiplot
[db] adds a test file
[db] changes permissions on asciiplot