move association mapping to the initialize method
move association mapping to the initialize method

jianpingw/waterline,balderdashy/waterline,postmanlabs/sails-mysql-transactions-waterline,jonniedeb/waterline,ctartist621/waterline,atiertant/offshore,kriswill/waterline,dmarcelino/waterline,tjwebb/waterline,marnusw/waterline,listepo/waterline,mcanthony/waterline,antoniopol06/waterline,contra/waterline,devinivy/waterline,metidia/waterline,luislobo/waterline,waterlinejs/waterline,Atlantis-Software/waterline,3032441712/waterline,scippio/waterline,particlebanana/waterline,nbiton/waterline,mmiller42/waterline,AlexisNo/waterline,Atlantis-Software/offshore,citizenken/waterline,hippich/waterline,Zaggen/waterline,eskygo/waterline,moklick/waterline