Tweak recite to yield better results for holy beings.

As their MR will be unachievably high no matter what, their "resist value" instead depends on your Invocations skill. Change calculation of power, so high values are easier to reach, to a maximum of 50.

Also add special casing for neutral monsters so they no longer pretend not to have noticed you.

Oh, and I found a problem concerning holy beings: Now that the player can actually meet hostile holy monsters the good gods reaction at killing one of them needs to be changed accordingly. We cannot simply restrict it to friendly holy beings as, once hit, they won't be friendly anymore. Instead we'll have to use the CREATED_FRIENDLY flag that already takes care of not getting any xp for any being that used to be friendly.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@3427 c06c8d41-db1a-0410-9941-cceddc491573

Created by  j-p-e-g  on February 10, 2008
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