Session Manager plugin 'Auto save' feature request
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 Hi, Would it be possible to have Auto save trigger on tab change focus, as the current tab focus is not recorded when npp is closed? I know I can kind of emulate this by toggling a bookmark in the margin of the active tab before closing npp - but just asking. Also, *.npp-session files no longer include the xml declaration <?xml version="1.0" encoding="UTF-8" ?>, therefore they are no longer syntax highlighted. I know I can change the default extension to xml in settings - but just saying.Thanks 
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 Forgot to mention - npp 7.5.7 (32-bit); SessionMgr.dll (with 32-bit fix by chcg) 
