Fix stream command tests
- Fixed stream list assertion to check if they exist in the stream list rather than checking at index '0'
  (This will avoid the tests' dependency in running on clean redis store)
- Refactored stream tests assertions
Fix tests on jdk6
XD-591 Improve build file distribution tasks

Making distZip copy all binary installs into the primary distribution
zip file. This was previously done in zipXD

Making distZip part of Application tasks - overriding description
from application plug-in

Adding distTar as part of Application tasks - overriding description
from application plug-in

Renaming distXD to copyInstall for consistency and making it part of
Application tasks

Changing description of dist, keeping it as the the driving task for
generating all distribution artifacts to be consistent with the build
for Spring Integration
XD-591 Updating README for distribution zip
XD-576-2 Refactor Target Handling in Shell

* Put URL of admin server into the banner
* Add error messages to banner IF targeting was unsuccessful
* Add a new class `Target` which encapsulates Target URI, error/success state+messages

XD-576-2 Code Review - remove super() from Target
Quick commit for feedback
Working code for local named channels, lacking parametrization & clean() method
Used a boolean instead of the Creator Strategy object, as this only applies to Local; Introduced an aliasHint though (named TBC)
Fixing compile error in test