[WFLY-3603] Add global resource notifications

Runtime attributes does not store their values in the resource models
and their read handler must be called before and after their write
handler to get the old and new value of the attribute.

JIRA: https://issues.jboss.org/browse/WFLY-3603
Merge pull request #59 from jorsol/check_log_string

WFLY-3668 Change startup script to read new logger code in 9.x
Merge pull request #62 from jmesnil/WFLY-3603_runtime_attribute-value-written_notification

[WFLY-3603] Add global resource notifications
[WFCORE-26] Created a launcher API to use in tooling or plugins. The API generates the needed list of commands to launch a WildFly process.
[WFCORE-26] Convert the standalone test server to use the launcher API.
[WFCORE-26] Convert domain test runners to use the launcher API.