Use fromCharCode with an array instead of in a loop
Use performance.now() in monotonicTimeInMillis
No need to store the |start| value when using performance.now()
Merge pull request #324 from marco-c/optimize_fromJavaChars

Use fromCharCode with an array instead of in a loop
Merge pull request #325 from marco-c/monotonicTimeMillis

Use performance.now() in monotonicTimeInMillis