iis: New improvements on the Wix installer

- Now the installation is divided in modules: ModSecurity and CRS.
- Added default configuration
- Configuration was moved to "Program Files" folder
- Build_msi script now using candle available in %PATH%

iis/build_msi.bat

@@ -1,19 +1,20 @@
 
-set WIX=C:\Program Files (x86)\WiX Toolset v3.7\bin
+
+set PATH="%PATH%;C:\Program Files (x86)\WiX Toolset v3.8\bin;C:\Program Files (x86)\WiX Toolset v3.7\bin;"
 set CURRENT_DIR=%cd%
 
 del installer.wix*
 
-"%WIX%\candle.exe" -ext WixUtilExtension -ext WixUIExtension "%CURRENT_DIR%\installer.wxs" -out "%CURRENT_DIR%\installer.wixobj" -dPlatform="x64"
+"candle.exe" -ext WixUtilExtension -ext WixUIExtension "%CURRENT_DIR%\installer.wxs" -out "%CURRENT_DIR%\installer.wixobj" -dPlatform="x64"
 @if NOT (%ERRORLEVEL%) == (0) goto build_failed
 
-"%WIX%\light.exe" -ext WixUtilExtension -ext WixUIExtension "%CURRENT_DIR%\installer.wixobj" -out "%CURRENT_DIR%\installer-64.msi" -dPlatform="x64"
+"light.exe" -ext WixUtilExtension -ext WixUIExtension "%CURRENT_DIR%\installer.wixobj" -out "%CURRENT_DIR%\installer-64.msi" -dPlatform="x64"
 @if NOT (%ERRORLEVEL%) == (0) goto build_failed
 
-"%WIX%\candle.exe" -ext WixUtilExtension -ext WixUIExtension "%CURRENT_DIR%\installer.wxs" -out "%CURRENT_DIR%\installer.wixobj" -dPlatform="x86"
+"candle.exe" -ext WixUtilExtension -ext WixUIExtension "%CURRENT_DIR%\installer.wxs" -out "%CURRENT_DIR%\installer.wixobj" -dPlatform="x86"
 @if NOT (%ERRORLEVEL%) == (0) goto build_failed
 
-"%WIX%\light.exe" -ext WixUtilExtension -ext WixUIExtension "%CURRENT_DIR%\installer.wixobj" -out "%CURRENT_DIR%\installer-32.msi" -dPlatform="x86"
+"light.exe" -ext WixUtilExtension -ext WixUIExtension "%CURRENT_DIR%\installer.wixobj" -out "%CURRENT_DIR%\installer-32.msi" -dPlatform="x86"
 @if NOT (%ERRORLEVEL%) == (0) goto build_failed
 
 exit /B 0