Apply mesilliac's patch in [1962846], slightly tweaked, to make

friendlies react to projectile attacks on other non-attacking monsters.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@5019 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dolorous  on May 13, 2008
VT3WFNEYL2JRNSKHN2OEOGCEL4LK4PIY3RXJS5TDY6MDZFF23ELAC
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