Initial support for providing command line arguments to scripts via xpointer.

Initial support for providing command line arguments to scripts via xpointer.

Accept-Language is also used to provide the script with the wanted language.
For calendar server in first line. For example the language of the country tag.
Roads and telephone numbers are pretty language independant, but country names not.
There might be other tags as well that has different value per language.
The xpointer is "abused" to provide a pointer into the run script.