Scripts; Web Summary Page Type Scripts; Template code not always setting Main variable to True

The template code for 'Web Summary Page' type Scripts was not always settings the 'Main' variable to True which would cause the template Script to return a value of False indicating that the Script had failed.

NOTE: The list of applicable Target Objects has also been extended to include Account, Client and SecurityStmt since these (together with Tasks) are the objects supported by the Web Interface and can therefore be used to provide a more intuitive template Script.