Move net handling (mostly) back to monster_polymorph(), and add comments

to monster_change_type indicating that special handling may be needed if the types are different enough.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@3782 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dolorous  on March 20, 2008
Z75MWMOPGK3RC3ERIV5AW52CRJDTYWLXYGE6CHRF4MCB5EJ7WH6QC
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