#11 Keep only Arr_polyline_traits_2
#11 Remove useless NewTabDialog.*
Ignore .kdev4 files in GIT.
Merge branch 'feature/task-version_1.2-CGAL_Arrangement-Arr_polyline_traits_2' of https://github.com/oliviertournaire/QLabelling into feature/task-version_1.2-CGAL_Arrangement-Arr_polyline_traits_2
Merge branch 'feature/task-version_1.2-CGAL_Arrangement-Arr_polyline_traits_2' into feature/task-version_1.2-CGAL_Arrangement