[BZ 1126410] Update data migrator to use the latest storage node schema.
[BZ 1126410] Minor updates based on code review.
Merge pull request #125 from rhq-project/datamigrator

[BZ 1126410] Update data migrator to latest storage node schema
[1143918] Addition of new Log Event Source using JBoss ON CLI will break the UI if all properties (even unset ones) are not added
Add support for the missing properties in this use case.
Prevent ConcurrentModificationExceptions that have been showing up in the
Jenkins test runs of this class.
BZ 1141181 1129413 - don't echo passwords to the console. ask to confirm passwords
Bug 1140637 - JBoss layered product (JBoss Fuse) does not have direct option
to open new support case

Allow opening support case on JBossFuse : JBossFuseContainer resource types
Bug 1139684 - eap cli script does not get correct result code for eap domain server on windows

This is due to "WFLY-3578 jboss-cli.bat always exits with return code 0 even after a cli failure"
https://issues.jboss.org/browse/WFLY-3578

Added jboss-cli-wrapper.bat
Calling "cmd /c jboss-cli.bat" will always return 0 even if an error occurs in the CLI
Calling it through the wrapper solves the issue

Side work:
* fix standalone and domain startup: start script prefix, if set, was not added
* when an error occurs, execute command and execute script operations now copy process output into the operation result instead of the error message
* some code cleanup (avoid possible NPE)