Merge remote-tracking branch 'origin/dev' into dev

res/ui/preferences.ui

src/sakia/core/account.py

src/sakia/core/app.py

src/sakia/core/community.py

src/sakia/core/money/__init__.py

src/sakia/core/money/base_referential.py

src/sakia/core/money/dividend_per_day.py

src/sakia/core/money/relative.py

src/sakia/core/money/relative_to_past.py

src/sakia/core/money/udd_to_past.py

src/sakia/core/net/api/bma/access.py

src/sakia/core/net/network.py

src/sakia/core/net/node.py

src/sakia/gui/community_tile.py

src/sakia/gui/community_view.py

src/sakia/gui/graphs/explorer_tab.py

src/sakia/gui/informations_tab.py

src/sakia/gui/mainwindow.py

src/sakia/gui/network_tab.py

src/sakia/gui/preferences.py