Adding close process and service stop to windows installer

[equinoxefr]

Hi,

Here's a new version of the installer file.

• Now it cleans cache directory
• It stops salt-minion service before upgrading
• It closes salt-minion.exe process (needed if install is launched from salt).

But WARNING there's 2 drawbacks:

• You need to add nsProcess NSIS plugin
• Salt can't return when we close salt-minion process :-( but it's needed to upgrade salt-minion.exe

Regards
Pierre

[UtahDave]

@equinoxefr Very nice! thanks!

Would you mind adding a note to the doc on how to add the nsProcess NSIS plugin?

Thanks for your help!