#7 Use SLF4J logger
- added some log messages
- changed log4j configuration
- replaced System.out.println() and e.printStackTrace() with logger
Update version of log4j
Move file loading to tests
- Loading diagram by file is used and will be used only in tests
java imports optimalisation
Problem fixes based on static analysis
Removed unused class
Added file name + removed unused code
Added spade configuration file to resources
Zobrazit revize
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