D17241: Disable highlighting for lines longer than 1024 characters.

[Shubham]

shubham added reviewers: cullmann, vkrause.

REPOSITORY
  R39 KTextEditor

REVISION DETAIL
  https://phabricator.kde.org/D17241

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