new scoping rules

Simplified the scoping rules for Object definitions and static counter variables (eg @Aton:C, @bond:CH, @Angle:HCH, ...). Hopefully this should make it easier to create LT files using namespaces and (nested) class definitions which behave in a way which is more similar to languages like python.

(This may eventually ease the transition to creating a version of moltemplate where static node definitions are implemented as python class definitions. It would be nice to have a version of moltemplate which can be run from within python itself.)

ltemplify.py working

This version has a stable, working version of ltemplify.py.

This is the first version of moltemplate where I bothered to click on the "Draft a Release" button.
In the future, I'll try to remember to do that.