upgrade to Elasticsearch 0.90.0 GA
move unit tests outside unit package (helps with protected methods)
add unit tests to hive/writable conversion
Fix incorrect serialization of array & map types

Incorrectly assumed Writable content (when underneath still Lazy types
were used by Hive)

fixes #39
publish nightly builds

fixes #29
rename Hive test to something more meaningful
add Maven repo for snapshots
add property fallback
improve build property discovery/fallback
change username/password so that bamboo can hide them
add build status image (thanks to Karel)
improve Hive serialization of lists
minimize logging output from Hive
add missing handling of IntWritable
set a test specific cluster name for the embedded ES

additionally use memory instead of the disk for indices which should
improve testing speed and clean-up
reduce Hive logging even further
add travis CI build file
embed Travis CI into Readme
improve pig schema saving and handling of non-named tuples

add base64/jdk serialization for Pig schema to cope with incorrect
toString() starting with Pig 0.8
add integration test for saving bags
fix compatibility with Pig 0.11
handle tuple with non-named keys (that lead to invalid json)
make test pig instance reusable