Zenpage class methods for pages and articles with more sort order variants
Sort orders for categories as well
Merge remote-tracking branch 'origin/1.4.5' into zenpage-class-sortorders

Conflicts:
	zp-core/zp-extensions/zenpage/zenpage-class.php

	modified:   themes/effervescence_plus/colorbox/functions.php
	modified:   themes/effervescence_plus/favorites.php
	modified:   themes/effervescence_plus/image_gallery/functions.php
	modified:   themes/effervescence_plus/image_page/functions.php
	modified:   themes/garland/colorbox/functions.php
	modified:   themes/garland/image_gallery/functions.php
	modified:   themes/garland/image_page/functions.php
	modified:   zp-core/admin.php
	modified:   zp-core/githead
	modified:   zp-core/locale/de_DE/LC_MESSAGES/zenphoto.mo
	modified:   zp-core/locale/de_DE/LC_MESSAGES/zenphoto.po
	modified:   zp-core/locale/nl_NL/LC_MESSAGES/zenphoto.mo
	modified:   zp-core/locale/nl_NL/LC_MESSAGES/zenphoto.po
	modified:   zp-core/locale/sk_SK/LC_MESSAGES/zenphoto.mo
	modified:   zp-core/locale/sk_SK/LC_MESSAGES/zenphoto.po
	modified:   zp-core/setup/index.php
	modified:   zp-core/version.php
	modified:   zp-core/zp-extensions/check_for_update.php
	modified:   zp-core/zp-extensions/zenpage/zenpage-class-news.php
	modified:   zp-core/zp-extensions/zenpage/zenpage-class.php
No point in sorting elements that will be removed

Makes the sort go faster if it is on fewer elements