Remove project name from output path

- aspnet/Coherence-Signed#187
- remove `<RootNamespace>` settings but maintain other unique aspects e.g. `<DnxInvisibleContent ... />`
- in a few cases, standardize on VS version `14.0` and not something more specific

Author: dougbu

src/dotnet-razor-tooling/dotnet-razor-tooling.xproj

@@ -8,7 +8,7 @@
   <PropertyGroup Label="Globals">
     <ProjectGuid>6f1cab8c-2315-46bb-b9b4-00564743590c</ProjectGuid>
     <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
-    <OutputPath Condition="'$(OutputPath)'=='' ">..\..\artifacts\bin\$(MSBuildProjectName)\</OutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">..\..\artifacts\bin\</OutputPath>
   </PropertyGroup>
   <PropertyGroup>
     <SchemaVersion>2.0</SchemaVersion>

test/dotnet-razor-tooling.Test/dotnet-razor-tooling.Test.xproj

@@ -8,7 +8,7 @@
   <PropertyGroup Label="Globals">
     <ProjectGuid>ab04d3ba-0a35-4502-ad4f-e8d1b38a6e5b</ProjectGuid>
     <BaseIntermediateOutputPath Condition="'$(BaseIntermediateOutputPath)'=='' ">..\..\artifacts\obj\$(MSBuildProjectName)</BaseIntermediateOutputPath>
-    <OutputPath Condition="'$(OutputPath)'=='' ">..\..\artifacts\bin\$(MSBuildProjectName)\</OutputPath>
+    <OutputPath Condition="'$(OutputPath)'=='' ">..\..\artifacts\bin\</OutputPath>
   </PropertyGroup>
   <PropertyGroup>
     <SchemaVersion>2.0</SchemaVersion>