Merge pull request #81 from mposolda/master

Added KeycloakRestartTest
LIVEOAK-130 - create new storage page implementation
Merge pull request #82 from vrockai/LIVEOAK-130

LIVEOAK-130 - create new storage page implementation
Ensure each extension provides a resource for system-level config, even if
nothing is actually configurable.
Ensure there's a system-config resource.
Move the CSS straight under the admin app.
Actually include the CSS.  *sigh*
Added InterceptorExtension with possibility of flexible interceptors configuration. Convert AuthHandler and AuthzHandler to interceptors