Lots of progress, release soon

I did a lot of work on the code recently, including:

- revamping the DateTime::Duration internals, and moving all the duration
related bits in DateTime.pm (like end of month mode parameters) to
DateTime::Duration.

- adding years & months as duration elements

- removing ical specific bits from DateTime::Duraiton

- revamped internals of DT in regard to overloading and
addition/subtraction

- almost finished docs for DT

- add component caching for DT

- Make DT respect time zone (before, it always reported components
according to UTC, not with offset!)

- made a bunch of functions class methods (to make it easier for
subclasses to override these)

- got time zone stuff working (see previous message which no one responded
to.  sniff)


Please take a look for bugs, typos, and so on.  I'm hoping to do a first
alpha release in the next week or so.


-dave

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• Lots of progress, release soon by Dave Rolsky