[!139] Removed data member vector::skip
Merge branch 'master' into 'master' ref:staging/dune-uggrid Removed vector::skip and the code that uses it. It compiles and the few existing tests run without problems. Fixes [#29] See merge request [!139] [#29]: gitlab.dune-project.org/NoneNone/issues/29 [!139]: gitlab.dune-project.org/staging/dune-uggrid/merge_requests/139 Closes #29