XD-1771 TwitterSearchTest now tests in append mode

Since the updates to TwitterSearch it returns multiple messages during the duration of the test.
Before we expected only one result/message now we get an indeterminate amount.  Thus the
assertReceived was removed and the file sink that captures the results is now in append mode.
XD-1628 UI: User can view specified/used job properties

* Add ability to view the job definition when viewing the job execution details
* Add ability to view the job module meta data (if job definition deployed) when viewing the job execution details
* Add `displayForJobname()` to `ModulesMetadataController`
* Add tests for `ModulesMetadataController`

Jira: https://jira.spring.io/browse/XD-1628

XD-1628 Code Review Changes
* Move Module Metadata and Job Definition details from the Job Execution Details page to a dedicated Job Deployment Details page
* Fix e2e tests

Fix comment and module dependency
Add locator support to gemfire-cq and gemfire source
XD-1773 upgrade Curator to 2.5.0