Moved .PHONY-target to the front of the Makefile
Create output and temporary folder
Introduced tmpDir variable
Write the packages.dot-tempfile
git should ignore the generated stuff
GraphViz file is created, parsed and resulting image copied to output!

FIX #1
Classes are indexed now
Classes are displayed in the graph now

FIX #2
Tweaked output of the graph a bit
Removed tracing stuff again…
Merge branch 'feature/GraphViz' into develop
Changed output format to svg
Some enhancements into the pdf
More to do for a `make clean`
Imported and really seen packages are now differently styled
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Trying to color classes and packages differently if they were seen only as an import