www/py-graphite-web: add patches to make graphite work with django 1.7

While here, pet portlint and improve pkg-message a bit

Reported by:	brd
Remove reference to non existent port
Fix pkgname collisions
- Update to 1.4.27

Changes:	https://github.com/npm/npm/releases
- Drop .la files, no dependees require them

Approved by:	portmgr blanket