x create directory if needed in FileCopyNewer()
* more optimizations so that U3Helper now can be installed as a separate U3-Package (GUID: 0f90f88c-5e05-4cab-8c3a-e1c0112b06fd)
* implemented ProgressBar on appStop
* use appStop routine in appStart-onExit
+ added RunBeforeStop
+ added RunBeforeEject
* handled all EnvVar-replacements through mb_EnvTools.ahk
+ added take-over of icon of %AppExe% ... if we add a TrayIcon someday
+ added OnClose-handling when using appstart (kills process of main application)