retargetting Net 4.5.1 instead of Net 4.5.2

Author: Dirkster99

source/SuggestBoxLib/SuggestBoxLib.csproj

@@ -1,7 +1,7 @@
-<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
 
   <PropertyGroup>
-    <TargetFrameworks>net452;netcoreapp3.0</TargetFrameworks>
+    <TargetFrameworks>net451;netcoreapp3.0</TargetFrameworks>
     <UseWPF>true</UseWPF>
   </PropertyGroup>
 
@@ -12,10 +12,10 @@
     <Copyright>2018 - 2019</Copyright>
     <Company>Open Source</Company>
     <Description>Provides a WPF/MVVM AutoComplete control</Description>
-    <Version>1.2</Version>
-    <AssemblyVersion>1.2</AssemblyVersion>
-    <FileVersion>1.2</FileVersion>
-    <VersionPrefix>1.2</VersionPrefix>
+    <Version>1.2.1</Version>
+    <AssemblyVersion>1.2.1</AssemblyVersion>
+    <FileVersion>1.2.1</FileVersion>
+    <VersionPrefix>1.2.1</VersionPrefix>
     <PackageProjectUrl>https://github.com/Dirkster99/SuggestBoxLib</PackageProjectUrl>
     <RepositoryUrl>https://github.com/Dirkster99/SuggestBoxLib</RepositoryUrl>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>