Try to fix CI.

.appveyor.yml

@@ -42,7 +42,7 @@ build_script:
 - ps: dotnet build RobustToolbox.sln /p:AppVeyor=yes
 
 test_script:
-- ps: nunit3-console.exe .\bin\UnitTesting\Robust.UnitTesting.dll;
+- ps: dotnet test
 
 after_test:
 - ps: >

.travis.yml

@@ -3,7 +3,7 @@ language: csharp
 dist: trusty
 sudo: false
 mono: none
-dotnet: 3.1.100
+# dotnet: 3.1.100 # Travis is shitting itself right now and it can't locate .NET Core packages.
 
 os:
 - linux
@@ -24,6 +24,9 @@ cache:
   - Dependencies/
   - Robust.Client.Godot/.mono/assemblies/
 
+install:
+- curl -sSL https://dot.net/v1/dotnet-install.sh | bash /dev/stdin --version 3.1.100
+
 #before_install:
 #  - if [ $TRAVIS_OS_NAME = osx ]; then brew update && brew upgrade python; fi
 
@@ -36,6 +39,5 @@ before_script:
 - "python3.5 RUN_THIS.py --no-prompt"
 
 script:
-- "dotnet build RobustToolbox.sln /p:Python=python3.5"
-- "dotnet test"
+- "Tools/run_travis.sh"