Increased max missile ranges to 12 since the new beaming code tends to pick

longer beams. We should fix that problem separately.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@808 c06c8d41-db1a-0410-9941-cceddc491573

Created by  haranp  on January 8, 2007
RBKHIKKQ5LSNWJA7ZIJ6B7HF36UA6LPZLVEWOJ3X5CUSQUOJGFZQC
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