Made the manual browser respect DATA_DIR_PATH.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@681 c06c8d41-db1a-0410-9941-cceddc491573

Created by  haranp  on December 20, 2006
3CTGIWAOXJG4JJNLTN5DMPQQPDRJB6E6YB2R25HK6QF3PMKGZWDQC
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