Added tray icon, tray menu functionality

Author: alystair

Launch Calculator.ahk

@@ -1,5 +1,15 @@
 ; Lorin's single instance Calculator launcher
 ; Replaces default calculator key functionality on keyboard
+; https://github.com/alystair/my-productivity-stack
+
+Menu, Tray, Icon , calc.exe, 1, 1
+Menu, Tray, Tip, Single calculator
+Menu, Tray, NoStandard
+Menu, Tray, Add, &Calculator, Launch_App2
+Menu, Tray, Add
+Menu, Tray, Add, Exit, Exit
+Menu, Tray, Default, &Calculator
+
 Launch_App2::
 IfWinNotExist Calculator
 {
@@ -10,3 +20,6 @@ IfWinNotExist Calculator
 }
 Else WinActivate Calculator
 return
+
+Exit:
+ExitApp