D18238: Implements a new button on findbar that allows users to choose the color that highlights the text

[Joao Oliveira]

joaonetto added a reviewer: Okular.

REPOSITORY
  R223 Okular

REVISION DETAIL
  https://phabricator.kde.org/D18238

To: joaonetto, #okular
Cc: okular-devel, ngraham, darcyshen, aacid