characters do not take account of hanging punctuation. Note that
placing a cursor next to the hanging puncuation is still not possible,
but the selection and the non-printing characters works fine now.

Change-Id: I22c8c2c5044b46c325236caffec67d9f68c23eed
Reviewed-on: https://gerrit.libreoffice.org/17591Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Norbert Thiebaud <nthiebaud@gmail.com>
Reviewed-on: https://gerrit.libreoffice.org/19031Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>