first draft of making hadoop fs schema configuragle
parse now uses isHadoopUnderFS function
switched to immutable list for util properties
cleanup imports
Merge branch 'master' into config-hdfs-underfs
Merge branch 'master' into config-hdfs-underfs
Merge branch 'master' into config-hdfs-underfs
testing and formating
Merge pull request #297 from dcapwell/config-hdfs-underfs

Config hdfs underfs