Refactor AppUtils.proxyKeys
Refactor AppUtils.proxyKeys

spark-notebook/spark-notebook,andypetrella/spark-notebook,0asa/spark-notebook,andypetrella/spark-notebook,maasg/spark-notebook,spark-notebook/spark-notebook,maasg/spark-notebook,andypetrella/spark-notebook,andypetrella/spark-notebook,maasg/spark-notebook,0asa/spark-notebook,spark-notebook/spark-notebook,0asa/spark-notebook,0asa/spark-notebook,antonkulaga/spark-notebook,antonkulaga/spark-notebook,maasg/spark-notebook,antonkulaga/spark-notebook,spark-notebook/spark-notebook,antonkulaga/spark-notebook