fix examples in GitHub readme page to 0.5 version usage
Cleaned up global sorting test cases and fixed latent bug in testing logic.
Fixed execution graph state checking to accept canceling -> failing transitions
Add branching logic for broadcast variables.
Added KMeans with additional point tagging as test case for branching broadcast variables.
Csv leniently accepts bad lines also when skipping fields
File data source fails fast on null inputs.
File paths used as default names.
CsvInputFormat can optionally skip an initial header line.
Default mode for output formats is not to overwrite existing files.
Globally configurable default modes for overwrite / output directory behavior.
Configurable behavior for FileOutputFormat through regular parameters, rather than configuration.
OutputFormat unit test discard existing temp files by default.
Additional test case for broadcast variables in branching data flows.
Added options to configure the default behavior of the LocalExecutor (ports, overwrite, hdfs config)
Cleaned up BroadcastBranchingITCase (added Apache header)
Compiler deadlock detection
fix NullPointException in web interface when inspecting a job immediately after it finished
delay the display of job history with 8 sec instead of using a high network overhead method
Fixed file output configuration and logging for various test cases.
Added functionality to re-initialize file format defaults for use with local executor.
Issue #519 Add setValue methods to Value types
Termination Criterion for Bulk Iterations