prevent duplicates while saving new article

Signed-off-by: Patrick Konstandin <support@flatfiler.de>
minor changes to the optics

Signed-off-by: Patrick Konstandin <support@flatfiler.de>
if mod_rewrite is enabled, use the pretty url for news feeds

Signed-off-by: Patrick Konstandin <support@flatfiler.de>
was never in usage

Signed-off-by: Patrick Konstandin <support@flatfiler.de>
Call Articles by shorter urls (Alternatively)

article_title + id + .html

Signed-off-by: Patrick Konstandin <support@flatfiler.de>