Fix personalization of the Apache license template

Fix a typo in retrieving the username from git.
Add the Apache license to the cucumber scenario.


I  had made a typo introduced in my previous pull request. It only affected the Apache license template, which didn't use the shared personalization header (templates/full/_license_head.txt.erb). This caused a git error message when using the Apache license and the error went unnoticed by the cucumber test suite because the Apache license wasn't included in the personalization scenario.