Link Interactive Rebase view with selected repository

Now rebase interactive view has a button in the toolbar to enable and
disable linking view content with repository or resource selection.

Bug: 444660
Change-Id: I417f53fc12af34d5843a14b205ceaac1a741de79
Signed-off-by: Vadim Dmitriev <dmgloss@mail.ru>
Fix misleading title in push result dialog if push failed

Bug: 428269
Change-Id: I67d082c1ff3ed3deabd23f1b1c793145eb16fada
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>