[Dev-luatex] Snapshot 20070622

[Taco Hoekwater]

Hi all,

It is already time for a new snapshot. It does not have a lot
much news, but it fixes a few important bugs in the lua node
processing. Also a few utility functions are added:

* tex.round()
   rounds and bounds checks a lua number to make sure it is
   a valid tex integer.
* tex.scale()
   multiplies a number (or the numeric values in a table)
   with a fixed quantity, and calls tex.round() on the result.
* node.has_field()
   Test if a node has a specified field name
* node.remove()
   removes a node from a nodelist, while keeping the list intact
* node.insert_before()
   inserts a new node into a nodelist, just before a specified
   location node
* node.insert_before()
   inserts a new node into a nodelist, just after a specified
   location node
* node.hpack()
   packages a nodelist into a hlist node


And last but not least, Hans has spend quite a bit of time removing
formatting inconsistencies from the reference manual.

Happy TeXing,

Taco