feat #584 bump attester to 1.2.0
feat #584 bump attester to 1.2.0

Close #584.

lsimone/ariatemplates,benouat/ariatemplates,divdavem/ariatemplates,fbasso/ariatemplates,simonarbuckle/ariatemplates,vcarle/ariatemplates,ariatemplates/ariatemplates,divdavem/ariatemplates,benouat/ariatemplates,flongo/ariatemplates,ymeine/ariatemplates,ymeine/ariatemplates,lsimone/ariatemplates,divdavem/ariatemplates,mlaval/ariatemplates,ariatemplates/ariatemplates,ariatemplates/ariatemplates,fcapa/aria,fbasso/ariatemplates,fcapa/aria,fcapa/aria,simonarbuckle/ariatemplates,fbasso/ariatemplates,ymeine/ariatemplates,vcarle/ariatemplates,benouat/ariatemplates,vcarle/ariatemplates,simonarbuckle/ariatemplates,mlaval/ariatemplates,mlaval/ariatemplates