Change description of SAPI 5 service

This now says "JScript" to reflect the new glue script.
Consistent validation between JScript and Python

Fixes the volume range to be 1..100 on both sides, adding a note to see
the other when changing.
Remove old Visual Basic script for SAPI

I do not think there is anything left from this that needs retention.
Add sapi5.vbs to the clean-up script

This will keep user's installations clean.
Install and package script adjustments

Switches these to operate on JS files rather than VBS.