- Warning : having instances saved locally to MainWindow
and locally to the test can cause a segfault
because PyQt5 doesnt check for the delete order
See http://pyqt.sourceforge.net/Docs/PyQt5/pyqt4_differences.html#object-destruction-on-exit

PS : Yeay to PyCharm & Jetbrains team :)

- Sending money
- Sending certification
- Sending membership

To be tested...

Values are based on discrete time t = last UD bloc time

Now, waiting for signals is way easier.

- Beware of python closure parameters in for loops !
- Use the bma_access.get directly in classes that needs
to be refreshed when getting the result, instead

Identities are now refreshing correctly

- New behaviour for network traversal
- New requests patter -> we get the cache data instantly
while we are requesting the network in background