lib_config: 
redefined the default docbase object to include dmbasic scripts and dars
check () now accepts $action to perform conditional check
checkObj (): fixed name of variable from $cfg to $obj

lib_dars: 
renamed docbase.dars into docbase.upgrade.dars

lib_database: comments updated

migrate.properties: removed (obsolete) sample entries

lib_config: renamed docbase.config_folder into docbase.daemon.dir
removed Set-Smtp_parameters () superseeded by Read-Dynamic-Conf ()
added Start-ContentServerServiceIf(), Stop-ContentServerServiceIf (), 
 Start-DmbasicScript ()
removed Start-DmbasicScriptCollection (replaced by Start-DmBasicStep ())

migrate: no longer uses PostUpgrade parameter, replaced with $action
first attempt to perform the whole upgrade, including the docbasic + 
dar install