Making fixes proposed by JFLarvoire in
Making fixes proposed by JFLarvoire in

https://github.com/JFLarvoire/SysToolsLib/pull/14#issuecomment-348799082

Changed tabs to space.

Renamed Parameters to ServiceUser and ServicePassword.

Completed changes for IsSystem check using the RunAsAccount.

Backed out changes for copying sub-directory.

JFLarvoire/SysToolsLib,JFLarvoire/SysToolsLib,JFLarvoire/SysToolsLib,JFLarvoire/SysToolsLib