fix minor typo
update test properties
upgrade Hadoop 2 to latest stable (2.2.0)

fixes #100
disable gateway for embedded ES server
fix bug in Hive tests
handle biginteger/bigdecimal types added in Pig 0.12

relates to #98
upgrade to Hive 0.12
add support for Hive writable

relates to #101
fix permissions for embedded Hive
relates to #101
add support for Hive 0.12 varchar