Fix for original buffer-names that contain '*' in their name added. Enables
the use of navi-mode with the *outorg-edit-buffer*. Robust enough for the
general case?
first version of keyword searches for R (actually ess-mode in R-dialect).
Works only for R and S, how to safeguard the other ESS dialects?
first complete version of keyword searches for ESS (R-dialect)
some fixes to ESS keyword searches.