- Update to 3.0.4
- Sort pkg-plist
- Trim Makefile header

Changes:
http://www.rabbitmq.com/release-notes/README-3.0.4.txt
http://www.rabbitmq.com/release-notes/README-3.0.3.txt
http://www.rabbitmq.com/release-notes/README-3.0.2.txt
http://www.rabbitmq.com/release-notes/README-3.0.1.txt

PR:		ports/178315
Submitted by:	olgeni
Reviewed by:	culot (mentor), maintainer (timeout, > 14 days)