occur: fix emacs line start
fixing emacs key handler when key code == -1 (this can happen with the
change introduced in #5e2c5f4)
isearch: now supports yanking, and killing text from edit buffer
isearch: recenterTopBottom
isearch: fixing isearch onpase
Merge pull request #1849 from LivelyKernel/emacs-fixes-2014-03-12

Emacs fixes 2014 03 12