Fix #206 Sync now frees memory on each chunk of applied blocks
Fix #206 Sync now frees memory on each chunk of applied blocks

blaurent49/duniter,blaurent49/duniter,blaurent49/duniter,blaurent49/duniter,duniter/duniter,duniter/duniter,duniter/duniter,duniter/duniter,duniter/duniter,duniter/duniter