Attempt at proper versioning?

pack.ps1

@@ -1,2 +1,2 @@
-dotnet pack "src\NadekoBot\NadekoBot.csproj" -c "Release" -o "../../artifacts" --no-build /p:BuildNumber="$Env:BUILD" /p:IsTagBuild="$Env:APPVEYOR_REPO_TAG"
+dotnet pack "src\NadekoBot\NadekoBot.csproj" -c "Release" -o "../../artifacts" --no-build --version-suffix "$Env:BUILD" /p:BuildNumber="$Env:BUILD" /p:IsTagBuild="$Env:APPVEYOR_REPO_TAG"
 if ($LastExitCode -ne 0) { $host.SetShouldExit($LastExitCode) }

src/NadekoBot/NadekoBot.csproj

@@ -4,6 +4,7 @@
     <Description>General purpose Discord bot written in C#.</Description>
     <Copyright>Kwoth</Copyright>
     <Authors>Kwoth</Authors>
+    <Version>1.4.$(VersionSuffix)</Version>
     <TargetFramework>netcoreapp1.1</TargetFramework>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
     <AssemblyName>NadekoBot</AssemblyName>
@@ -16,6 +17,8 @@
     <GenerateAssemblyProductAttribute>false</GenerateAssemblyProductAttribute>
     <GenerateAssemblyInformationalVersionAttribute>false</GenerateAssemblyInformationalVersionAttribute>
     <GeneratePackageOnBuild>False</GeneratePackageOnBuild>
+    <AssemblyVersion>1.0.0.0</AssemblyVersion>
+    <FileVersion>1.0.0.0</FileVersion>
   </PropertyGroup>
 
   <ItemGroup>

src/NadekoBot/NadekoBot.nuspec

@@ -0,0 +1,15 @@
+<?xml version="1.0"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd">
+  <metadata>
+    <id>NadekoBot</id>
+    <version>1.4.0-2$suffix$</version>
+    <title>NadekoBot</title>
+    <authors>Kwoth</authors>
+    <owners>Kwoth</owners>
+    <description>General purpose discord chat bot written in C#.</description>
+    <tags>nadeko;bot;nadekobot;discord bot</tags>
+    <projectUrl>https://github.com/Kwoth/NadekoBot</projectUrl>
+    <licenseUrl>https://choosealicense.com/licenses/unlicense/</licenseUrl>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+  </metadata>
+</package>