Allow describing rod/spellbook spells from the examine command (jarpiain).

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@1370 c06c8d41-db1a-0410-9941-cceddc491573

Created by  dshaligram  on April 25, 2007
JVSCP4FTW2G57C6YD5HZOZXTODGZH7TR75JQGFJBEPX3LCZH236QC
Change contents