[Emacs] Partial match acceptance for evil and isearch.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>
[Emacs] sp: Fix scala symbol handling.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>
[Emacs] sp: Add sexp slurping key.

Signed-off-by: Michael Markert <markert.michael@googlemail.com>