Added Gradle wrapper validation. Fixes #1429.
Added Gradle wrapper validation. Fixes #1429.

dlaha21/wiremock,tomakehurst/wiremock,tomakehurst/wiremock,dlaha21/wiremock,tomakehurst/wiremock,tomakehurst/wiremock,Mahoney/wiremock,tomakehurst/wiremock,Mahoney/wiremock,dlaha21/wiremock,Mahoney/wiremock,dlaha21/wiremock,dlaha21/wiremock,Mahoney/wiremock,Mahoney/wiremock