Auto Update Makefiles should build from Visual Studio projects to avoid duplication of build params

Currently the auto update binaries (jusched.exe and jucheck.exe) are built using build paramters specified in the Makefile. The visual studio project files for those executables also contain the same list of build parameters. If there is a change in one location, it is a manual process to add the change to the other. This is prone to error.

The Visual Studio environment has the ability to do a command line build using the project files as the input. Changing our Makefiles to performt this Visual Studio command line build would eliminate the need to have 2 indentical sets of build parameters.