excluded logback-classic dependency from gretty plugin
excluded logback-classic dependency from gretty plugin

akhikhl/gretty,WilliamRen/gretty,akhikhl/gretty,cwardgar/gretty,akhikhl/gretty,saladinkzn/gretty,cwardgar/gretty,aya-eiya/gretty,cwardgar/gretty