improve compatibility with Hadoop 0.20 (and jackson 1.7)
LocalES learned to disable itself if an external ES is specified
improve compatibility of ESHadoopScheme with custom File systems
introduce PigWrapper to superseed Local/Remote Pig during tests
improve Hive tests when dealing with remote services
improve ES-Hadoop library registration
add names to unnamed columns during Hive inserts
minor cleanup
better encapsulation
organize imports
add another Hive constant
save testing profile
improve detection of remote ES instances