Bump v0.26.0

Unosquare.RaspberryIO.sln

@@ -8,7 +8,6 @@ EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{144147AA-41C9-4639-AF1E-F08534CA8D49}"
 	ProjectSection(SolutionItems) = preProject
 		.editorconfig = .editorconfig
-		.travis.yml = .travis.yml
 		appveyor.yml = appveyor.yml
 		LICENSE = LICENSE
 		README.md = README.md

appveyor.yml

@@ -1,12 +1,11 @@
 version: '1.0.{build}'
 image: 
-- Visual Studio 2017
+- Visual Studio 2019
 - Ubuntu
 build:
   project: Unosquare.RaspberryIO.sln
   verbosity: quiet
-configuration:
-- Release
+configuration: Release
 platform: Any CPU
 notifications:
 - provider: Slack

src/Unosquare.RaspberryIO.Playground/Unosquare.RaspberryIO.Playground.csproj

@@ -26,7 +26,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Unosquare.Swan.Lite" Version="2.2.2" />
+    <PackageReference Include="Unosquare.Swan.Lite" Version="2.3.0" />
     <PackageReference Include="Unosquare.WiringPi" Version="0.5.0" />
   </ItemGroup>
   <ItemGroup>

src/Unosquare.RaspberryIO/Unosquare.RaspberryIO.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <Description>The Raspberry Pi's IO Functionality in an easy-to use API for Mono/.NET Core
@@ -11,7 +11,7 @@ This library enables developers to use the various Raspberry Pi's hardware modul
     <AssemblyName>Unosquare.RaspberryIO</AssemblyName>
     <PackageId>Unosquare.Raspberry.IO</PackageId>
     <CodeAnalysisRuleSet>..\..\StyleCop.Analyzers.ruleset</CodeAnalysisRuleSet>
-    <Version>0.25.0</Version>
+    <Version>0.26.0</Version>
     <Authors>Unosquare</Authors>
     <PackageIconUrl>https://github.com/unosquare/raspberryio/raw/master/logos/raspberryio-logo-32.png</PackageIconUrl>
     <PackageProjectUrl>https://github.com/unosquare/raspberryio</PackageProjectUrl>
@@ -29,7 +29,7 @@ This library enables developers to use the various Raspberry Pi's hardware modul
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Unosquare.Swan" Version="2.2.0" />
+    <PackageReference Include="Unosquare.Swan" Version="2.3.1" />
   </ItemGroup>
 
   <ItemGroup>