Changes to be committed:
	modified:   src/main/java/javahive/silnia/impl/KalkulatorSilniBigDecimal.java
	modified:   src/main/java/javahive/silnia/impl/KalkulatorSilniGuava.java
	modified:   src/main/java/javahive/silnia/impl/SzybkiKalkulatorSilni.java
	modified:   src/test/java/javahive/silnia/SilniaTest.java
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