Update transpile.js for JS Compiler release r20181021
Update transpile.js for JS Compiler release r20181021

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=218206946

lucidsoftware/closure-library,teppeis/closure-library,google/closure-library,teppeis/closure-library,teppeis/closure-library,google/closure-library,teppeis/closure-library,lucidsoftware/closure-library,lucidsoftware/closure-library,lucidsoftware/closure-library,google/closure-library,google/closure-library,google/closure-library