WFLY-2610 vault tool can take an external password
Remove ConfigAdmin subsystem

It was only used as part of OSGI but we removed osgi from codbase some time ago.
Test cases for WFLY-2739
Test cases for WFLY-2739
[WFLY-943] Use of elementFormDefault='unqualified' cannot validate some documents
[WFLY-561] Resource adapter work manager statistics
Make domain mode work in core distribution
[WFLY-2838] Make "cpu" the default mod_cluster load metric
WFLY-2817 MailSessionDefinitionAnnotationParser throws NPE
WFLY-2596 Web JASPIC fixes:

- Adds a JASPICSecurityContext that provides implementation of HttpServletRequest.login() and logout() methods according to the spec;
- Changes JASPI mechanism to use a ConduitWrapper in order to ensure secureResponse() is called before the response is committed;
- Implements logic to handle the javax.servlet.http.registerSession scenario.
Expose 2 more listener configuration options
Add gzip filter support
Upgrade Undertow 1.0.0.CR2
WFLY-918 - initial metrics implemenation
WFLY-2853 - Ignore test
Add handler to deal with 100-continue requests
Fix usage of Infinispan grouping API.
[WFLY-2862] Warn when the file descriptor limit is too low
WFLY-2774 Non-distributed, stateful web applications cannot be load balanced using sticky sessions
Rename *Adapter classes within wildfly-clustering-web-undertow, to distinguish between implementations of Undertow vs clustering API interfaces.
Few components upgrades & some cleanup