* Remove the tango icon set and merge gnome's instead
* Update build to the latest standards
* Maintain the cache files in /var/cache/icons/$themename

	modified:   libs_toolkit/icon_theme/hicolor-icon-theme-0.12-slackware.patch.xz
	modified:   libs_toolkit/icon_theme/icon_theme.build
	deleted:    libs_toolkit/icon_theme_gnome/icon_theme_gnome.build