#264 New Xom effects

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The attached patch implements three new Xom effects:
1) changing the scenery, affecting fountains and doors (non-tension good)
2) animating monster weapons (tension good)
3) swapping weapons with a monster (tension bad)

It also adds a list of total effects over all piety ranges to the debugging output.

The diff is against the last svn revision plus my previous patch. There isn't any way to get at the git code (if only of single files) without actually installing git, is there?

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[David Lawrence Ramsey]

Applied; thanks.