INTSAMPLES-107 - Add CoffeeService Sample to Oracle StoredProc Sample

* Add the CoffeeService Sample from the PostgreSql Stored Procedure Sample to the Oracle Stored Procedure Sample.

For reference see: https://jira.springsource.org/browse/INTSAMPLES-107
Merge pull request #89 from ghillert/INTSAMPLES-107

INTSAMPLES-107 - Add CoffeeService Sample to Oracle StoredProc Sample
INTSAMPLES-106 JMS: Eliminate Hijack of stdout

Caused unusual behavior when exceptions occurred, or debug
logging enabled.

Now uses Spring profiles to route the output to a QueueChannel
instead.
Merge pull request #88 from garyrussell/INTSAMPLES-106

* garyrussell-INTSAMPLES-106:
  INTSAMPLES-106 JMS: Eliminate Hijack of stdout
INTSAMPLES-109 - Move XQuery Sample to SI Extensions Repo

New location: https://github.com/SpringSource/spring-integration-extensions/tree/master/samples/xquery
Merge pull request #90 from ghillert/INTSAMPLES-109

INTSAMPLES-109 - Move XQuery Sample to SI Extensions Repo
INTSAMPLES-110 - Add doc/polish REST sample
Merge pull request #91 from ghillert/INTSAMPLES-110

INTSAMPLES-110 - Add doc/polish REST sample
INTSAMPLES-114 Twitter Search Requires Authentication

* Update Sample to Spring Integration 2.2.4
* In the sample - disallow unauthenticated Twitter Searches
  - As of Twitter API version 1.1, users must be authenticated to perform searches.

For reference see: https://jira.springsource.org/browse/INTSAMPLES-114
Merge pull request #93 from ghillert/INTSAMPLES-114

INTSAMPLES-114 Twitter Search Requires Authentication
Update SI Version 2.2.0 -> 2.2.6