Update gradle bintray plugin version
Update gradle bintray plugin version

Gradle gives following error when publishing maven
'message:Unable to upload files: Maven group, artifact or version defined in the pom file do not match the file path'

The issue has been fixed from 1.8.1
https://github.com/bintray/gradle-bintray-plugin/issues/242#issuecomment-397826471

ANZ-bank/Sysl,ANZ-bank/Sysl