add support for nested tuple fields
XD-225 Merge pull request #68 from markfisher-tuplenest

* markfisher-tuplenest:
  add support for nested tuple fields
more flexible quoting options
XD-224: Merge pull request #67 from aclement/quotes-in-params

* aclement-quotes-in-params:
  more flexible quoting options
Polishing distribution generation
Add `docs` to README
added banner to local mode
XD-176: Add exponential moving average support.

RichGauge now optionally supports as an alternative to the simple mean.
If the "alpha" smoothing constant is set for the gauge instance it will
calculate an exponential moving average instead.

The "mean" property of RichGauge has been renamed to "average" to
reflect this.
XD-176: Update toString method of RichGauge

Added the "alpha" value.
XD-230 adding rabbit source module
Merge pull request #70 from markfisher/XD-230

* XD-230:
  XD-230 adding rabbit source module
Exclude Spring 3.1 dependencies in spring-xd-test

Prevents occasional clashes running container
and admin in the IDE
XD-231: Twitter "gardenhose" support.

Initial commit - ported from kodiak with some minor alterations.
XD-160 Publish Golo-themed HTML doc to Artifactory
XD-231: Don't retry gardenhose on a 401

If authentication fails, the source fails to start rather than
trying repeatedly.
XD-231: Add back-off support for errors.

Back-off for rate limiting and other errors as required by the
twitter API docs.
XD-231: Add read timeout property to gardenhose.

Prevents the stream hanging in some cases. Default timeout is set
to 90s as recommended by twitter.

See https://dev.twitter.com/docs/streaming-apis/connecting#Stalls
Make log4j a compile sep for spring-xd-dirt

DefaultContainer references log4j classes directly. Needed for Intellij
gradle import.
Add additional links to README.md
Merge branch 'gardenhose'