add .travis.yml
add .travis.yml

LukeWinikates/dotnet-toolbox,dotnet-toolbox/dotnet-toolbox,LukeWinikates/dotnet-toolbox,dotnet-toolbox/dotnet-toolbox,dotnet-toolbox/dotnet-toolbox,LukeWinikates/dotnet-toolbox,dotnet-toolbox/dotnet-toolbox,LukeWinikates/dotnet-toolbox