Added archiving of items, reduced usage of images for icons
When an item is archived, it is not shown to plain users. Internally, when an i…
Added archiving of items, reduced usage of images for iconsWhen an item is archived, it is not shown to plain users. Internally,when an item is archived, the publish status is changed to "expired"and removed from search/syndication. When an item is archived, it canbe brought via "toggle-publish-status" to state "production" again.Future versions might rename the item in such conditions, butcurrently, it is NOT renamed, so one cannot create one more item inthe same folder with the same name.For realizing this functionality, the includelet "form-usages" acceptsnow an additional optional value for "-buttons" named "archive". Thepublish status toggle can be used now for switching from"production"->"ready", "ready"->"production" and"expired"->"production".Additionally, the usage of .png images as icons was reduced by CSSelements for easier styling (e.g., for different themes) and forreducing less server requests and better responsiveness. In particularthe images for active.png and inactive.png are not necessary any moreand were removed.Bumped version number to 5.10.1d8 to enforce loading of the messagekeys.