fix invalid nightly stratosphere build for hadoop1
[travis] Fix some ruby dependencies for travis, see
https://github.com/travis-ci/travis-artifacts/issues/23
Replication properties are not pushed down.
[yarn] use unique appId in to store jar in hdfs
[dist] deploy yarn in a separate compressed file
[yarn] fixed yarn binary; implemented a simple but effective shutdown mechanism for the yarn-session
[yarn] deploy new yarn.tgz with travis, fix file permission in binary
Log rotation for start-local.bat
add failed node list to web interface
Correctly handle transient variables during serializability check
Correctly marked text input format members as transient
Add avro input format for generic objects.
Add end to end test for avro with external jar and external test data.
Removed redundant object cloning in usercode wrapper to fix class loading issue.
Fixed logging in avro tets case
Serialization tags in ScalaInputFormat
Handle serialization / lazy initialization of UDF types in scala input formats
Fix bug in CsvInputFormat resulting from changing UserCodeWrapper

configure() is called twice on input formats because of statistics
generation. CsvInputFormat did not handle this gracefully.

Also change TPCHQuery3WithUnionITCase to TestBase2.
Added example program test jar
Simplified and fixed estimate computation.
Fix estimate computation and add (enable) additional tests.