WIP - Install/update support

appveyor.yml

@@ -0,0 +1,31 @@
+version: 1.0.{build}
+pull_requests:
+  do_not_increment_build_number: true
+skip_tags: true
+image: Visual Studio 2017
+configuration: Release
+assembly_info:
+  patch: true
+  file: 'Properties\AssemblyInfo.cs'
+  assembly_version: '{version}'
+  assembly_file_version: '{version}'
+build:
+  project: WorkIndicator.sln
+  verbosity: minimal
+after_build:
+- ps: >-
+    nuget pack WorkIndicator.nuspec -Version $env:APPVEYOR_BUILD_VERSION -Properties Configuration=Release -OutputDirectory bin\Release\
+
+    $squirrel = ".\packages\squirrel.windows.*\tools\Squirrel.exe"
+
+    .$squirrel -releasify ".\bin\$env:CONFIGURATION\WorkIndicator.$env:APPVEYOR_BUILD_VERSION.nupkg" | Write-Output
+artifacts:
+- path: Releases\*
+  name: Releases
+deploy:
+- provider: Environment
+  name: GitHub
+install:
+- cmd: git submodule update --init --recursive
+before_build:
+- cmd: nuget restore