Update travis config.

Author: brendanburns

.travis.yml

@@ -2,9 +2,9 @@ language: csharp
 sudo: required
 matrix:
   include:
-    - dotnet: 1.0.4
+    - dotnet: 2.0.0
       mono: none
       dist: trusty
 
 script:
-  - ./ci.sh
+  - ./ci.sh

tests/tests.csproj

@@ -5,14 +5,14 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.0.0" />
-    <PackageReference Include="xunit" Version="2.3.0-beta3-build3705" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.3.0-beta3-build3705" />
-    <DotNetCliToolReference Include="dotnet-xunit" Version="2.3.0-beta3-build3705" /> 
+    <PackageReference Include="xunit" Version="2.3.0-beta4-build3742" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.3.0-beta4-build3742" />
+    <DotNetCliToolReference Include="dotnet-xunit" Version="2.3.0-beta4-build3742" /> 
   </ItemGroup>
   <ItemGroup>
     <None Include="assets/*" CopyToOutputDirectory="Always" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\src\KubernetesClient.csproj" />
   </ItemGroup>
-</Project>
+</Project>