Update aggregate.js
Update aggregate.js

createEach method: changing async.each to async.eachSeries. This allows to insert records in the order as we expect. Also most of integraion tests from https://github.com/balderdashy/waterline-adapter-tests expect this behaviour.

citizenken/waterline,ctartist621/waterline,AlexisNo/waterline,moklick/waterline,mcanthony/waterline,particlebanana/waterline,dmarcelino/waterline,scippio/waterline,3032441712/waterline,Zaggen/waterline,contra/waterline,Atlantis-Software/waterline,antoniopol06/waterline,balderdashy/waterline,waterlinejs/waterline,tjwebb/waterline,jonniedeb/waterline,hippich/waterline,jianpingw/waterline,Atlantis-Software/offshore,atiertant/offshore,mmiller42/waterline,kriswill/waterline,luislobo/waterline,listepo/waterline,metidia/waterline