Remove occasional double object feelings
Add 'quit without saving' wizard command (useful for debugging)
Messages about objects identified in the quiver no longer say they are on the ground.  Closes #1820.
Merge pull request #372 from NickMcConnell/3.5-release

Remove occasional double object feelings
Fix #1810 by having autoconf/configure check for presence of rst2html
Fix #1831: Check for rst2latex and pdflatex and make the relevant bits of the manual fail to build cleanly if they are missing