Wrapper respects -q/--quiet options

Gradle wrapper should respect *-q* and *--quiet* options.

Use case: when parsing output from gradle, we use *-q* flag to suppress all gradle messages. On our CI environment we need to download gradle distribution first and since gradlew does not respect *-q* flag, it prints a lot of noise, which makes parser fail.

This PR was discussed on [mailing list](https://groups.google.com/forum/#!topic/gradle-dev/hwZTkb5OX3A).