Revert "Merge pull request #1221 from ChadKillingsworth/externs-cleanup"
Revert "Merge pull request #1221 from ChadKillingsworth/externs-cleanup"

This reverts commit a406b3390b8f5714f539b71c93d16dfd45edf2e0, reversing
changes made to a5c8d3a23a8c5b3e9c999360819dc21ed730d8c2.

google/closure-compiler,mprobst/closure-compiler,Yannic/closure-compiler,tiobe/closure-compiler,ralic/closure-compiler,rintaro/closure-compiler,tdelmas/closure-compiler,redforks/closure-compiler,Yannic/closure-compiler,mneise/closure-compiler,Dominator008/closure-compiler,ralic/closure-compiler,tiobe/closure-compiler,Yannic/closure-compiler,rintaro/closure-compiler,ChadKillingsworth/closure-compiler,mprobst/closure-compiler,monetate/closure-compiler,monetate/closure-compiler,vobruba-martin/closure-compiler,Pimm/closure-compiler,redforks/closure-compiler,vobruba-martin/closure-compiler,google/closure-compiler,shantanusharma/closure-compiler,lgeorgieff/closure-compiler,monetate/closure-compiler,tiobe/closure-compiler,tiobe/closure-compiler,shantanusharma/closure-compiler,Pimm/closure-compiler,brad4d/closure-compiler,tdelmas/closure-compiler,tdelmas/closure-compiler,anomaly/closure-compiler,ChadKillingsworth/closure-compiler,Yannic/closure-compiler,lgeorgieff/closure-compiler,Dominator008/closure-compiler,LorenzoDV/closure-compiler,selkhateeb/closure-compiler,superkonduktr/closure-compiler,shantanusharma/closure-compiler,Dominator008/closure-compiler,GerHobbelt/closure-compiler,Medium/closure-compiler,GerHobbelt/closure-compiler,Pimm/closure-compiler,superkonduktr/closure-compiler,GerHobbelt/closure-compiler,shantanusharma/closure-compiler,ChadKillingsworth/closure-compiler,LorenzoDV/closure-compiler,mneise/closure-compiler,superkonduktr/closure-compiler,GerHobbelt/closure-compiler,google/closure-compiler,tdelmas/closure-compiler,redforks/closure-compiler,ralic/closure-compiler,rintaro/closure-compiler,vobruba-martin/closure-compiler,MatrixFrog/closure-compiler,selkhateeb/closure-compiler,brad4d/closure-compiler,MatrixFrog/closure-compiler,MatrixFrog/closure-compiler,nawawi/closure-compiler,Medium/closure-compiler,selkhateeb/closure-compiler,anomaly/closure-compiler,google/closure-compiler,lgeorgieff/closure-compiler,nawawi/closure-compiler,mprobst/closure-compiler,brad4d/closure-compiler,superkonduktr/closure-compiler,anomaly/closure-compiler,MatrixFrog/closure-compiler,Medium/closure-compiler,lgeorgieff/closure-compiler,anomaly/closure-compiler,ChadKillingsworth/closure-compiler,vobruba-martin/closure-compiler,LorenzoDV/closure-compiler,mneise/closure-compiler,nawawi/closure-compiler,mprobst/closure-compiler,monetate/closure-compiler,nawawi/closure-compiler