Update installer for Windows and add README.md

deploy/windows/README.md

@@ -0,0 +1,11 @@
+Install the [Qt Installer Framework](https://download.qt.io/official_releases/qt-installer-framework/) and make sure its bin folder is added to the path.
+
+The `sigviewer.exe` binary needs to be present in `$sigviewer/bin/release` - if not, build it. Open a command prompt, change into `$sigviewer/bin/release` and type:
+
+    windeployqt sigviewer.exe
+
+Next, move the contents of the `$sigviewer/bin/release` folder into `$sigviewer/deploy/windows/packages/org.sigviewer.sigviewer/data`. Furthermore, copy the file `$sigviewer/src/images/sigviewer.ico` to this folder.
+
+Finally, change into `$sigviewer/deploy/windows` in the command prompt and type:
+
+    binarycreator --offline-only -c config/config.xml -p packages sigviewer

deploy/windows/packages/org.sigviewer.sigviewer/meta/installscript.qs

@@ -12,7 +12,6 @@ Component.prototype.createOperations = function()
 
     if (systemInfo.productType === "windows") {
         component.addOperation("CreateShortcut", "@TargetDir@/sigviewer.exe", "@StartMenuDir@/SigViewer.lnk",
-            "workingDirectory=@TargetDir@", "iconPath=%SystemRoot%/system32/SHELL32.dll",
-            "iconId=2");
+            "workingDirectory=@TargetDir@", "iconPath=@TargetDir@/sigviewer.ico");
     }
 }