removed string builtin dependency in runtime alloy.js, speed up compile process
removed string builtin dependency in runtime alloy.js, speed up compile process

FokkeZB/alloy,mobilehero/adamantium,jvkops/alloy,FokkeZB/alloy,bhatfield/alloy,xavierlacot/alloy,bhatfield/alloy,NadsonFernando/alloy,brentonhouse/brentonhouse.alloy,4talesa/alloy,FokkeZB/alloy,indera/alloy,brentonhouse/brentonhouse.alloy,indera/alloy,mobilehero/adamantium,jvkops/alloy,WY08271/alloy,jvkops/alloy,4talesa/alloy,bhatfield/alloy,jppope/alloy,indera/alloy,NadsonFernando/alloy,4talesa/alloy,WY08271/alloy,jppope/alloy,jppope/alloy,brentonhouse/brentonhouse.alloy,mobilehero/adamantium,xavierlacot/alloy,NadsonFernando/alloy,WY08271/alloy,xavierlacot/alloy