Revert "Use committer's e-mail instead of author's"

This reverts commit 2ed609b9e16f2b38863e94667dde04d86ae0c16b.

Conflicts:
	lib/application.rb
Revert "Fix failing test after bug fix"

This reverts commit 291910d03e404e5b84981380f4795977c3e8b343.
Ignore coverage/