[General] Solution changes and some settings. Created Master.slnx to create code that is distributed from a single solution. Does NOT include VSIntegration.

Author: RobertvanderHulst

src/Compiler.slnx

@@ -60,7 +60,6 @@
     <File Path="Common/set.xh" />
     <File Path="Common/version.Targets" />
     <File Path="Common/version.xh" />
-    <File Path="Common/VFPProperties.xh" />
     <File Path="Common/XbasePPCmd.xh" />
     <File Path="Common/XSharp.snk" />
     <File Path="Common/XSharpConstants.cs" />

src/Compiler/src/Compiler/XSharpBuildTask/XSharp.BeforeCommon.Props

@@ -25,8 +25,8 @@ Copyright (C) XSharp BV. All rights reserved.
     <XSharpMsBuildDir Condition="'$(XSharpMsBuildDir)' == '' and '$(MSBuildExtensionsPath64)'!='' " >$(registry:HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\XSharpBV\XSharp@XSharpPath)\MsBuild</XSharpMsBuildDir>
     <XSharpMsBuildDir Condition="'$(XSharpMsBuildDir)' == ''" >$(MSBuildProgramFiles32)\XSharp\MsBuild</XSharpMsBuildDir>
     <LanguageTargets Condition="'$(LanguageTargets )' == ''" >$(XSharpMsBuildDir)\XSharp.Common.targets</LanguageTargets>
-    <TargetPlatformIdentifier>Windows</TargetPlatformIdentifier>
-    <GenerateSupportedOSPlatformAttribute>false</GenerateSupportedOSPlatformAttribute>
+    <TargetPlatformIdentifier Condition="'$(TargetPlatformIdentifier)' == ''">Windows</TargetPlatformIdentifier>
+    <GenerateSupportedOSPlatformAttribute Condition="'$(GenerateSupportedOSPlatformAttribute)' == ''">false</GenerateSupportedOSPlatformAttribute>
     <XsMSBuildManagedFolder>$(MSBuildExtensionsPath)\Microsoft\VisualStudio\Managed</XsMSBuildManagedFolder>
   </PropertyGroup>
   <Import Condition="'$(MSBuildProjectExtension)' == '.xsproj' and '$(XSharpDefaultProps)' == '' " Project="$(XSharpMsBuildDir)\XSharp.Props" />