Added spears to fire order, & as an alias for X in autopickup option, removed

travel_exclude_radius2, corrected feature names in level-design.txt. (David).

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@1950 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dshaligram  on July 30, 2007
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