update project build scripts

Author: jemygraw

src/Qiniu/Qiniu.csproj

@@ -64,8 +64,8 @@
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Newtonsoft.Json, Version=10.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
-      <HintPath>..\packages\Newtonsoft.Json.10.0.3\lib\net40\Newtonsoft.Json.dll</HintPath>
-      <Private>True</Private>
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\bin\Newtonsoft.Json.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />

src/QiniuTests/QiniuTests.csproj

@@ -38,8 +38,8 @@
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="nunit.framework, Version=3.7.1.0, Culture=neutral, PublicKeyToken=2638cd05610744eb, processorArchitecture=MSIL">
-      <HintPath>..\packages\NUnit.3.7.1\lib\net40\nunit.framework.dll</HintPath>
-      <Private>True</Private>
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\..\bin\nunit.framework.dll</HintPath>
     </Reference>
     <Reference Include="System" />
   </ItemGroup>
@@ -49,11 +49,7 @@
         <Reference Include="Microsoft.VisualStudio.QualityTools.UnitTestFramework, Version=10.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" />
       </ItemGroup>
     </When>
-    <Otherwise>
-      <ItemGroup>
-        <Reference Include="Microsoft.VisualStudio.QualityTools.UnitTestFramework" />
-      </ItemGroup>
-    </Otherwise>
+    <Otherwise />
   </Choose>
   <ItemGroup>
     <Compile Include="CDN\CdnManagerTests.cs" />