Copyright for gradle-debian-helper source package in Xenial

Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: Gradle Debian Helper
Source: https://launchpad.net/maven-packaging-support/

Files: *
Copyright: 2015, Emmanuel Bourg  
License: Apache-2.0
 On Debian systems, the full text of the Apache-2.0 license
 can be found in the file '/usr/share/common-licenses/Apache-2.0'