Merge branch 'dev' into translations

src/cutecoin/models/network.py

src/cutecoin/models/peering.py

src/cutecoin/models/txhistory.py

src/cutecoin/models/wallets.py

src/cutecoin/tests/__init__.py

src/cutecoin/tests/main_window/__init__.py

src/cutecoin/tests/main_window/test_main_window_dialogs.py

src/cutecoin/tests/main_window/test_main_window_menus.py

src/cutecoin/tests/qapp.py

src/cutecoin/tests/stubs/__init__.py

src/cutecoin/tests/stubs/core/__init__.py

src/cutecoin/tests/stubs/core/net/__init__.py

src/cutecoin/tests/stubs/core/net/network.py

src/cutecoin/tests/stubs/core/registry/__init__.py

src/cutecoin/tests/stubs/core/registry/identities.py

src/cutecoin/tests/stubs/core/registry/identity.py

src/cutecoin/tools/exceptions.py