Adds "entry more" function to Contaos news function

This extension adds a new function to the news from Contao which allows to split the news text into two parts. You might know this from the more-Tag from Wordpress or similar functions from other Weblog systems.

The news text is splitted into two parts. The first one will be used in news archives and lists while the second is used for displaying the complete news entry in the reader. The regular teaser field is not touch. It can still be used for teaser texts without formatting.

Usage:

• When saving a news entry both new fields will be copied into the existing (and hidden) one. That means that you don't have to touch Contao in all places where you want to use the full news text.
• Only in the news lists where you want to have just the first part of the text and a link "read more" have to be modified. The extension brings to modified standard templates news_latest_rich.tpl and news_short_rich.tpl.
• If you want to use the fields in your own templates use the field names textPart1 and textPart2.