this attribute the left menu (UserAccountMenu) can be managed based on the
selected user. The logged on user context (roles) finally determines if the
menu item shows up or not.
selectedUserContext attribute can contain "Administrator,Reseller,User"
Available roles now in the platform: Administrator, Reseller, User, PlatformCSR,
PlatformHelpdesk, ResellerCSR, ResellerHelpdesk.
The platform CSR and Helpdesk are peer accounts on platform root level.
The names can be used within the websitepanel_pages.config on Page and Module
level. On module level the roles can be specified on the viewRoles attribute and
readOnlyRoles attribute. When specifying the later all controls will be disabled
within the Modile, the viewRoles just show the page or not. When nothing
specified the page is just shown
