In preparation for adding new linux (Fedora 8) infrastructure ports all linux
base ports were unified. Now it's linux_base-fc4 turn: devel/linux-glib2
is incorporated.

Changes:

• emulation/linux_base-fc4: . devel/linux-glib2 is incorporated; . CONFLICTS is fixed; . PORTREVISION is bumped;

• removed *_DEPENDS upon devel/linux-glib2 and PORTREVISION bumped: . accessibility/linux-atk; . astro/google-earth; . audio/linux-openal; . graphics/linux-XnViewMP; . www/linux-mplayer-plugin; . x11-toolkits/linux-gtk2; . x11-toolkits/linux-pango;

• devel/linux-glib2: . CONFLICTS is fixed; . DEPRECATED; . EXPIRATION_DATE is set;

Note: this should fix a bug for non-default linux base ports when glib2

files were installed both by a linux base and by linux-glib2 ports.