Fixed crash when summoned creature is killed by trap (Iaido) - monsters should not trigger traps on creation, only when moving onto a square.

Upped ammo preservation chances for javelins (Chilliwack).

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@2379 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dshaligram  on October 8, 2007
RI4M3GZHNE7IY2R7OBY2E56B2ULEMAEJTEHJBQ6A3WTELSV523RAC
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