Cleanup following code review

* Added comment to build.xml
* Re-exposed staging repository address (Splunk policy does not prohibit publishing internal URLs)
* Wrapped long lines in deploy.md
* Logged issue [DVPL-2843](https://jira.splunk.com/browse/DVPL-2843) to track documentation TODOs and removed TODO comments from deploy script

Signed-off-by: David Noble <dnoble@splunk.com>