D17441: tune editing actions for large number of small edits

[Christoph Cullmann]

cullmann added reviewers: dhaumann, Kate.

REPOSITORY
  R39 KTextEditor

REVISION DETAIL
  https://phabricator.kde.org/D17441

To: cullmann, dhaumann, #kate
Cc: kwrite-devel, kde-frameworks-devel, hase, michaelh, ngraham, bruns, 
demsking, cullmann, sars, dhaumann