add ess-help-reuse-window

     If t, ESS tries to display new help buffers in the existing help window

git-svn-id: https://svn.r-project.org/ESS/trunk@5757 0bbaf3bd-34e0-0310-bf65-c717079852d4
developer: kill DESCRIPTION buffer after use

git-svn-id: https://svn.r-project.org/ESS/trunk@5758 0bbaf3bd-34e0-0310-bf65-c717079852d4
developer: a more reliable path detection

   Solves windows bug:

   From: "Carslaw, David" <david.carslaw@kcl.ac.uk>
   Subject: [ESS] ESS hangs emacs on start-up

git-svn-id: https://svn.r-project.org/ESS/trunk@5759 0bbaf3bd-34e0-0310-bf65-c717079852d4
developer: doc cleanup

git-svn-id: https://svn.r-project.org/ESS/trunk@5760 0bbaf3bd-34e0-0310-bf65-c717079852d4
developer: document all new features and changes

git-svn-id: https://svn.r-project.org/ESS/trunk@5761 0bbaf3bd-34e0-0310-bf65-c717079852d4
Merge branch 'trunk'

Conflicts:
	lisp/ess-developer.el