[Pythoncard-users] addresses sample and generalized document model

Rather than creating a separate sample to experiment with a more generalized
set of document classes for the framework, I decided to just work with the
existing addresses sample initially. Since addresses is also an example of
converting the layout and data from a HyperCard stack to PythonCard I
renamed the existing addresses sample to keep it around.

cvs comment:
renamed old addresses and its resource file to addresses052.py and
addresses052.rsrc.py since they are from prototype release 0.5.2
added a new addresses.py so I can work on a document model for addresses
that might be generalized for the whole framework later

The initial conversion just moves the document handling into a separate
class, much like the textIndexer uses, but instead of ZODB, I'm just using
the same plain text file format for the records made up of a list of
dictionaries. The actual file type used for storage is one of the issues
that needs to be addressed for the Document class hieararchy.

I also added Find and two missing edit menu items.

I would like to make the addresses sample more useful, so I plan to clean up
the layout and expand the scope of what it can do, so feel free to make
suggestions on the feature set or contribute code.

ka