build: implemented auto-generation of GUID for windows installer

deployment/windows/wixSetup/build.bat

@@ -3,19 +3,27 @@ VERSION_STRING="${VERSION_STRING//-/_}"
 VERSION_STRING="${VERSION_STRING//./_}"
 VERSION_STRING="${VERSION_STRING%_*}"
 VERSION_STRING="${VERSION_STRING//_/.}"
-
 echo "installer version is $VERSION_STRING"
 
+PRODUCT_GUID=$(cmd.exe /c "VsDevCmd.bat & uuidgen")
+echo "product guid is $PRODUCT_GUID"
+
 rm -rf build
 mkdir build
 
+
+
+rm -rf ../../../bin/app/data/install/uninstall_wix.bat
+echo $"%windir%\system32\msiexec.exe /x {$PRODUCT_GUID}" >../../../bin/app/data/install/uninstall_wix.bat
+
+
 "devenv.com" Setup/build/Setup.sln //build "Release|x86"
 "devenv.com" CustomActions/CustomActions.sln //build "Release|x86"
 
 rm -rf bin
 mkdir bin
 
-candle.exe -dprojectVersion="$VERSION_STRING" coati.wxs customActions.wxs dialogShortcuts.wxs installDir.wxs appDataDir.wxs -out build/ > build/compileLog.txt
+candle.exe -dprojectVersion="$VERSION_STRING" -dprojectGuid="$PRODUCT_GUID" coati.wxs customActions.wxs dialogShortcuts.wxs installDir.wxs appDataDir.wxs -out build/ > build/compileLog.txt
 light.exe -ext WixUIExtension build/coati.wixobj build/customActions.wixobj build/dialogShortcuts.wixobj build/installDir.wixobj build/appDataDir.wixobj -out build/coati.msi > build/linkLog.txt
 
 cp -u -r build/coati.msi bin

deployment/windows/wixSetup/coati.wxs

@@ -3,10 +3,10 @@
 
     <Product Name='Coati' 
 			Manufacturer='Coati Software OG'
-			Id='F8BA9656-DE2E-4925-9CF4-C43285A2CA6E'
+			Id='$(var.projectGuid)'
 			UpgradeCode='6DAB9E05-6E5B-4D26-A2A0-8F1757F2A4EF'
 			Language='1033' 
-			Codepage='1252' 
+			Codepage='1252'
 			Version='$(var.projectVersion)'>
 
 		<Package Id='*' Keywords='Installer' Description="Coati Installer"