Fix number of phantomjs instances set in npm script "attest".
Fix number of phantomjs instances set in npm script "attest".

In case "none" browser was passed, the number of phantomjs instances set for attester remained determined by attester itself, thus using any possible external mechanism (in this case, it could read global npm configuration for the attester package). However in the case of "none" browser, we need to set 0 instances explicitly.

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