Added any_glyph_connected() and has_exit_from_glyph() Lua functions for level

validation.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@1672 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dshaligram  on June 27, 2007
UU5EKED2RA2U3CFZ3UEJQEWSWHQPEU7ZD4KH3I22IIVZFHD4Y67QC
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