Improved article stream title-text template
* returns "Start" for the first page instead of "Page 0"
** this corresponds to the navigation
* changed "Start" navigation link in master template
* i.e. the index page is named "0", server config will have to be changed accordingly
** thought about generating it as "index" directly
** while this is possible using the XPath evaluation functionality of the target meta attribute the lack of a if-statement in XPath 1.0 would require a very ugly workaround (e.g. the answer to http://stackoverflow.com/questions/971067/is-there-an-if-then-else-statement-in-xpath)