update gradle to version 4.1.3
update gradle to version 4.1.3

checked the aapt2-proto reference, is further necessary

matej116/cgeo,tobiasge/cgeo,matej116/cgeo,cgeo/cgeo,rsudev/c-geo-opensource,tobiasge/cgeo,cgeo/cgeo,tobiasge/cgeo,rsudev/c-geo-opensource,rsudev/c-geo-opensource,matej116/cgeo,cgeo/cgeo,cgeo/cgeo