* New upstream release.

* debian/chemtool.desktop: Added entry to process application/x-chemtool.
* debian/chemtool.sharedmimeinfo: Added to make the system recognize the
  application/x-chemtool MIME type.
* debian/control (Standards-Version): Bumped to 3.8.1.
  (Depends): Fixed debhelper-but-no-misc-depends. Added autotools-dev to fix
  outdated-autotools-helper-file.
* debian/chemtool.sharedmimeinfo
* debian/patches/07_manpage_fixes.patch: Dropped (applied upstream).
* debian/patches/08_escape_characters_for_svg.patch: Ditto.