Unify settings for solution and project setups.

Create a single solution platform named x86.
Ensure both Debug and Release configs build to the root for all projects.
Ensure all Release configs generate pdbs.

OpenRA.Game/OpenRA.Game.csproj

@@ -46,8 +46,9 @@
     <CodeAnalysisRuleSet>AllRules.ruleset</CodeAnalysisRuleSet>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
-    <OutputPath>bin\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
+    <OutputPath>..\</OutputPath>
+    <DefineConstants>
+    </DefineConstants>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <Optimize>true</Optimize>
     <DebugType>pdbonly</DebugType>