WFLY-1560 fixing module names/slots in jca moduledeployment tests
WFLY-1560 fixing the module removal which might be leave out sometimes due to WFLY-1672 changes
WFLY-1560 changing slot name to "main" in one of JCA module-deployment tests
WFLY-1560 checking whether a slot directory exists instead of a module directory
WFLY-1765 fixing LOG_STORE_TYPE attribute value for JDBC object store