Added name property to api user representer. Using this in wp overview header.
updated spec for new user name property.
Merge branch 'dev' into fix/user-name-in-wp-overview

Conflicts:
	public/templates/work_packages.list.details.html
Cleaned up author reference.
Merge branch 'dev' into fix/user-name-in-wp-overview

Conflicts:
	public/templates/work_packages.list.details.html
Merge pull request #1579 from opf/fix/user-name-in-wp-overview

Fix/user name in wp overview