Introduce String.format() style parameters to test utility methods
XD-549 Add 'display' command for RichGauge
     - Display string representation of richgauge metric values
    (example: name: r1, value: 15.0, avg: 12.5, max: 15.0, min: 10.0)
  Added richgauge tests
     - Added AbstractMetricIntegrationTest that has metric specific helper methods
     - Fixed tests that use metric methods
Fix review comments
 - Added RichGaugeResource domain object to include alpha and count
 - Replace RichGaugeOperations' method name display to retrieve and to return RichGaugeResource
 - Added RichGaugeResource's display command to return Table
 - Added pattern option to format metric values
 - Added tests for RichGauge display, list and delete commands
XD-592: Add @Ignore'd tests that showcase the problem
Fixed default keyExpression PPH in gemfire sinks
XD-624 Remove TCP Syslog WARN Log

See INT-3107
XD-624 Fix TCP Syslog Deserializer

Needs a linefeed serializer instead of th default CRLF.
XD-614 Channel Registry Conversion Improvements

Convey contentType and originalContentType in message to allow
proper decoding on the inbound side.

For Redis, add the headers to the payload of the transported
message.

XD-614 Polishing

PR Comments.
XD-622 Various Javadoc Fixes

Remove warnings from build.
XD-626 Shell: RestTemplate not posting using UTF-8

XD-626 Add Integration Tests

XD-626 Code review changes
XD-633 Rabbit Source Improvements

- Make the stream name the default queue.
- Change the parameter to queues (from queue) since a list of queues is supported.
XD-636 Header Leakage in Rabbit Transport

The ARPMH used in the rabbit transport copied the request headers.

This caused the internal transport content-type header to be
restored when there was no original content-type. It also caused
the internal 'originalContentType' header to be restored.
XD-599 Adding placeholders for spring-xd-hadoop sub-projects

The placeholder will fix an issue with the Gradle plug-in or Eclipse not being able to handle
the missing sub-project directories.
Fix tap stream.modulename syntax

XD-592: more tap fixes

Fix compile errors and simplify tests config to use nearly InMemory repos

Added test delete unknown stream
XD-533 - Add additional options to file source
XD-553 - Add additional options to file source