Updating Julia Version

In the long run a built in tool for updating Julia will be part of JuliaWin.
Currently, the update must be done manually by:

1. Close any application related to the JuliaWin installation.
2. Download the binary file updated version of Julia from Julia Releases.
3. Go to <JuliaWinPath>\packages\julia and delete its content.
4. Copy the contents of the Julia binary into <JuliaWinPath>\packages\julia.

If the update is a Minor version (1.6.x -> 1.7.y) then, in order to have all packages on the new version, copy Project.toml from userdata\.julia\environments\v1.6 to userdata\.julia\environments\v1.7 (Or do a text merge). Then on Julia do ] up.