Search on git.duniter.org, can be set in constants.py

bug in pylupdate5 in PyQT5, see: https://github.com/pyqt/python-qt5/issues/54

[enh] propose new sakia account menu at first start instead of create a new member account on the network

Change menu order to put pubkey mode in first

Add qdesigner dialog with Sakia version and a cancel button
Update translation

Add formula and description in referentials classes

Currently translated at 69.3% (240 of 346 strings)

Currently translated at 97.4% (347 of 356 strings)

Currently translated at 89.2% (300 of 336 strings)

Currently translated at 2.9% (10 of 336 strings)