- do pwm suboru pridat nastavenia rozmerov obrazkov

image_size: sirka=>640;vyska=>480;watermark=>0
	sirka=>120;vyska=>90;watermark=>0
	sirka=>0;vyska=>0;watermark=>0
	sirka=>0;vyska=>0;watermark=>0;crop_width=>300;crop_height=>150;suffix=>_300x150
	sirka=>0;vyska=>0;watermark=>0;crop_width=>70;crop_height=>70;suffix=>_70x70
	sirka=>720;vyska=>720;watermark=>0