Bump version number

Terminal.Gui/Terminal.Gui.csproj

@@ -9,7 +9,7 @@
   <PropertyGroup>
     <GeneratePackageOnBuild Condition=" '$(Configuration)' == 'Release' ">true</GeneratePackageOnBuild>
     <PackageId>Terminal.Gui</PackageId>
-    <PackageVersion>0.70</PackageVersion>
+    <PackageVersion>0.80</PackageVersion>
     <Authors>Miguel de Icaza</Authors>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
     <PackageProjectUrl>https://github.com/migueldeicaza/gui.cs/</PackageProjectUrl>