show pictures in full size until a size of 3/4 of screen; show patch
level in about; update settings.xml if starting another version of the
program
moved derby.log to .Lernkarten, fixed FileNotFoundException in jar file
with default xml file import via getResource as stream
added length limit of 50 characters to title.
Merge pull request #1 from random-access/patching

fixed picture size, derby.log and title length