Updated to .NET Core 2.2 (#23)

Also updated API and app deps

src/api/MyPrayerJournal.Api/Data.fs

@@ -1,6 +1,6 @@
 namespace MyPrayerJournal
 
-open FSharp.Control.Tasks.ContextInsensitive
+open FSharp.Control.Tasks.V2.ContextInsensitive
 open Microsoft.EntityFrameworkCore
 
 /// Helpers for this file
@@ -183,7 +183,6 @@ module Entities =
 
 
 open System.Linq
-open System.Threading.Tasks
 
 /// Data context
 type AppDbContext (opts : DbContextOptions<AppDbContext>) =

src/api/MyPrayerJournal.Api/Handlers.fs

@@ -2,6 +2,7 @@
 [<RequireQualifiedAccess>]
 module MyPrayerJournal.Api.Handlers
 
+open FSharp.Control.Tasks.V2.ContextInsensitive
 open Giraffe
 open MyPrayerJournal
 open System

src/api/MyPrayerJournal.Api/MyPrayerJournal.Api.fsproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>netcoreapp2.2</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
@@ -12,11 +12,12 @@
 
   <ItemGroup>
     <PackageReference Include="FSharp.EFCore.OptionConverter" Version="1.0.0" />
-    <PackageReference Include="Giraffe" Version="1.1.0" />
-    <PackageReference Include="Giraffe.TokenRouter" Version="0.1.0-beta-110" />
+    <PackageReference Include="Giraffe" Version="3.6.0" />
+    <PackageReference Include="Giraffe.TokenRouter" Version="1.0.0" />
     <PackageReference Include="Microsoft.AspNetCore.App" />
     <PackageReference Include="NCuid.NetCore" Version="1.0.1" />
-    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="2.1.1.1" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="2.2.0" />
+    <PackageReference Include="TaskBuilder.fs" Version="2.1.0" />
   </ItemGroup>
 
   <ItemGroup>