README.md document UNSUPPORTED workaround for Visual Studio 2017

ref: brodycj/cordova-sqlite-ext#60

README.md

@@ -99,7 +99,7 @@ Use the `location` or `iosDatabaseLocation` option in `sqlitePlugin.openDatabase
   - Pre-populated database (Android/iOS/macOS/Windows)
 - Amazon Fire-OS is dropped due to lack of support by Cordova. Android platform version should be used to deploy to Fire-OS 5.0(+) devices. For reference: [cordova/cordova-discuss#32 (comment)](https://github.com/cordova/cordova-discuss/issues/32#issuecomment-167021676)
 - Windows version (using a customized version of the performant [doo / SQLite3-WinRT](https://github.com/doo/SQLite3-WinRT) C++ component) has the following known limitations:
-  - This version branch with dependency on platform toolset libraries included by Visual Studio 2015 ref: [litehelpers/Cordova-sqlite-storage#580](https://github.com/litehelpers/Cordova-sqlite-storage/issues/580)
+  - This version branch has dependency on `v140` build toolset included by Visual Studio 2015 ref: [litehelpers/Cordova-sqlite-storage#580](https://github.com/litehelpers/Cordova-sqlite-storage/issues/580) (UNTESTED and UNSUPPORTED WORKAROUND for Visual Studio 2017 is described at: <https://developercommunity.visualstudio.com/content/problem/48806/cant-find-v140-in-visual-studio-2017.html>)
   - It is **not** possible to use this plugin with the default "Any CPU" target. A specific target CPU type **must** be specified when building an app with this plugin.
   - Truncation issue with UNICODE `\u0000` character (same as `\0`)
   - No background processing
@@ -127,7 +127,7 @@ Use the `location` or `iosDatabaseLocation` option in `sqlitePlugin.openDatabase
 - macOS ("osx" platform) is now supported
 - New [litehelpers / Cordova-sqlite-evcore-extbuild-free](https://github.com/litehelpers/Cordova-sqlite-evcore-extbuild-free) version with Android JSON and SQL statement handling implemented in C, as well as support for PhoneGap Build, Intel XDK, etc. (GPL or commercial license terms). Handles large SQL batches in less than half the time as this version. Also supports arbitrary database location on Android.
 - Published [brodybits / Cordova-quick-start-checklist](https://github.com/brodybits/Cordova-quick-start-checklist) and [brodybits / Avoiding-some-Cordova-pitfalls](https://github.com/brodybits/Avoiding-some-Cordova-pitfalls).
-- Windows 8.1/Windows Phone 8.1/Windows 10 version is available **here** (Visual Studio 2015 required, Visual Studio 2017 NOT supported by this version branch) as well as in [litehelpers / cordova-sqlite-ext](https://github.com/litehelpers/cordova-sqlite-ext) (with pre-populated database support) and [litehelpers / Cordova-sqlite-legacy](https://github.com/litehelpers/Cordova-sqlite-legacy) (with WP8 support).
+- Windows 8.1/Windows Phone 8.1/Windows 10 version is available **here** (with dependency on `v140` build toolset included by Visual Studio 2015) as well as in [litehelpers / cordova-sqlite-ext](https://github.com/litehelpers/cordova-sqlite-ext) (with pre-populated database support) and [litehelpers / Cordova-sqlite-legacy](https://github.com/litehelpers/Cordova-sqlite-legacy) (with WP8 support). UNTESTED and UNSUPPORTED WORKAROUND for Visual Studio 2017 is described at: <https://developercommunity.visualstudio.com/content/problem/48806/cant-find-v140-in-visual-studio-2017.html>)
 - Android version currently uses the lightweight [Android-sqlite-connector](https://github.com/liteglue/Android-sqlite-connector) by default configuration (may be changed as described below).
 - Self-test functions to verify proper installation and operation of this plugin
 - More explicit `openDatabase` and `deleteDatabase` `iosDatabaseLocation` option