Merge branch 'dev' into network

appveyor.yml

res/i18n/ts/fr_FR.ts

src/cutecoin/core/app.py

src/cutecoin/core/community.py

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

src/cutecoin/core/txhistory.py

src/cutecoin/gui/informations_tab.py

src/cutecoin/gui/transactions_tab.py