Allow default '*' policy to be set to false (switched config validity check to look for undefined, not just falsy values.)
Allow default '*' policy to be set to false (switched config validity check to look for undefined, not just falsy values.)

AnyPresence/sails,Hanifb/sails,Benew/sails,saniko/soundcloud_mithril,dylannnn/sails,harrissoerja/sails,robincafolla/sails-hbs,jianpingw/sails,t2013anurag/sails,jianpingw/sails,Shyp/sails,apowers313/sails,hokkoo/sails,marnusw/sails,zand3rs/sails,mphasize/sails,antodoms/sails,curphey/sails,calling/sails,haavardw/sails,corbanb/sails,Josebaseba/sails,leobudima/sails,Karnith/sails-for-gulp,vip-git/sails,adrianha/sails,metidia/sails,alexferreira/sails,yinhe007/sails,robincafolla/sails-hbs,EdisonSu768/sails,yangchuoxian/sails,rlugojr/sails,hokkoo/sails,mauricionr/sails,youprofit/sails,xjpro/sails-windows-associations,antoniopol06/sails,hellowin/sails,boarderdav/sails,giano/sails,jakutis/sails,wsaccaco/sails,denismars/sails,janladaking/sails,kevinburke/sails,vip-git/sails,mnaughto/sails,balderdashy/sails,shaunstanislaus/sails,sunnycmf/sails,taogb/sails,prssn/sails,alex-zhang/sails,rkJun/sails,rlugojr/sails,konstantinzolotarev/sails,anweiss/sails,cazulu/sails,listepo/sails,leedm777/sails,baracudaengine/SailsUi,scippio/sails,saniko/soundcloud_mithril,tempbottle/sails,togusafish/logikinc-_-sails,tjwebb/sails,JumpLink/sails,justsml/sails,krishnaglick/sails,winlolo/sails,jsisaev1/sails,pmq20/sails,saronwei/sails,dbuentello/sails,jenalgit/sails,artBrown/sails,ctartist621/sails,giano/sails,erkstruwe/sails