Fix monsters capable of LOS attack behind glass walls being ignored.

Fix monsters behind glass walls being autotargetted for spells that need a path.

Fix spacing in spl-data.h, and add some comments about commenting to coding_conventions.txt.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@5148 c06c8d41-db1a-0410-9941-cceddc491573

Created by  j-p-e-g  on May 20, 2008
CHO4U5JC3RNTLXVIDXXJYZMOBZJ4VXW2GVJWDOTBRKK3AJ36LDLQC
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