Bitcoin hardware wallet startup Ledger has raised €1.3m (£959,000) in a seed round led by French VC fund, XAnge Private Equity.Also participating in the round were Hi-Pay (Hi-Media group), NetAtmo CEO Fred Potter, Rentabiliweb Group VP Thibaut Faurès Fustel de Coulanges, Alain Tingaud Innovations and Pascal Gauthier, Criteo’s ex-COO…