error few more fings
add error gnuplot script
Merge branch 'error'

Conflicts:
	classificationPlot.png
	regressionPlot.png
	src/main/java/pl/edu/pw/mini/bms2/Main.java
	src/main/java/pl/edu/pw/mini/bms2/NeutralNetworksManager.java
	tests/err_1.properties
Merge branch 'error'

Conflicts:
	classificationPlot.png
	regressionPlot.png
	src/main/java/pl/edu/pw/mini/bms2/Main.java
	src/main/java/pl/edu/pw/mini/bms2/NeutralNetworksManager.java
	tests/err_1.properties