www/ephemera: update 5.0 -> 5.1

PR:		192952
Submitted by:	James Bailie <jimmy@mammothcheese.ca>
Approved by:	marino (mentor)


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@366196 35697150-7ecd-e111-bb59-0022644237b5