netty-based inbound channel adapter

mapping headers
Merge pull request #12 from markfisher/XD-72

* XD-72:
  netty-based inbound channel adapter
Fix logging for StreamServer.

Added log4j jar and slf4j-log4j, plus explicit slf4j versions.
Fix typo in build.gradle
changed xdhome to xd.home - and added e.printStackTrace() to StreamServerTests
Merge branch 'master' of github.com:SpringSource/spring-xd
avoiding json errors with simple but manual code
XD-74 Tail Module

3 parameters:

    name: filename (absolute path); default: /tmp/xd/input/${xd.stream.name}
    lines: Number of lines before the end of the file to tail; default: 0
    delay: On platforms that don't wait for a missing file to arrive, the number of milliseconds between attempts; default: 5000

curl -X POST -d "tail --name=/tmp/foo --lines=5 | file --name=bar" http://localhost:8080/streams/tailtest
XD-102 - Create XDContainer class to start stream server
XD-103 - Create XDAdmin server to start container launcher
Added/enhanced gemfire modules and some tweeks to CacheServer
Merge branch 'master' of github.com:SpringSource/spring-xd
XD-102 - Create XDContainer class to start stream server
XD-103 - Create XDAdmin server to start container launcher

Mixed up pairing the right class to delegate to for container and main.  Did a name change as well.
XD-62: Added ability to use Tuple in batch jobs
XD-76 - Add gemfire-server application to the distribution zip of the project spring-xd-gemfire-server
XD-102 - Create XDContainer class to start stream server
XD-103 - Create XDAdmin server to start container launcher

remove options aroud redis ports, need to revisit.  Allow for admin server to embed container, not the other way around.
Merge pull request #15 from mminella/XD-62

XD-62: Added ability to use Tuple in batch jobs
XD-115 SpEL transform processor
XD-116 SpEL filter processor
XD-117 adding spring-integration-groovy
XD-62: Added ability to use Tuple in batch jobs
time zone fix in tests.