documentation update

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beta 7.2

core
======

fixed bug to launch the tool with "java -jar SToNe.jar" on the command line

SongbookUpdater
======

added some output for debugging

**********

beta 7.1

core
=======

implemented renaming a bit more fault tolerant

AbcCreator
=======

operational changes; moved local parameters
beta 7.3

AbcCreator
======

replaced built-in BruTE version 17 with version 18

**********

beta 7.2

core
======

fixed bug to launch the tool with "java -jar SToNe.jar" on the command line

SongbookUpdater
======

added some output for debugging

**********

beta 7.1

core
=======

implemented renaming a bit more fault tolerant

AbcCreator
=======

operational changes; moved local parameters