Copyright for leveldb-java source package in Bionic

Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: leveldb-project
Source: http://github.com/dain/leveldb

Files: *
Copyright: 2011-2015, Dain Sundstrom 
License: Apache-2.0

Files: debian/*
Copyright: 2015, Emmanuel Bourg 
License: Apache-2.0

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'