Also:
* Rename dimensionline.ui to dimensionlinetabpage for naming consistency
* Fix connector and measure dialogs for connectors and dimension lines

Change-Id: I921890b33a5f9807a6e12341ef7f374312abfc8b
Reviewed-on: https://gerrit.libreoffice.org/5920Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>