Updated save gaps

Changed saveWkbk to saveGAPS and refactored code to be consistent with
other methods.
Added file verification before saving
Updated Prerequisites
Revert "Updated Prerequisites"

This reverts commit 0c16aa5ec1d4175eb05bf04ae52fb136ca494f50.
Updated prerequisites
Added branch check to 473 - Fixed #1
Added shortcut to installer
Added install instructions
Added CheckForUpdate & Support for 117 all orders
Enabled Auto-Update