Update to 2.3.0

Sponsored by:	DK Hostmaster A/S


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@368547 35697150-7ecd-e111-bb59-0022644237b5
- Fix the double title bar and several mouse cursors [1]
- Enable the notification center [2]
- Bump PORTREVISION

Submitted by:	Tomek <tomek@apostata.org> [1]
Submitted by:	Alexey V. Panfilov <lehis2000@mail.ru> [2]


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@368548 35697150-7ecd-e111-bb59-0022644237b5