Downgraded required .net to v4.0.

Added suppoer for "Handbox" custom action
Changes how the focuser in and out functions.  Now sends multiple :F+/-# and multiple stop commands to help get over problems with the #909 missing commands.

Added support for checking for the older firmware that does not support the guiding commands, so uses guide rate slew instead.

Meade.net.focuser/Meade.net.focuser.csproj

@@ -15,7 +15,7 @@
     <UpgradeBackupLocation>
     </UpgradeBackupLocation>
     <OldToolsVersion>3.5</OldToolsVersion>
-    <TargetFrameworkVersion>v4.7.1</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
     <ApplicationIcon>ASCOM.ico</ApplicationIcon>
     <SignAssembly>true</SignAssembly>
     <AssemblyOriginatorKeyFile>ASCOMDriverTemplate.snk</AssemblyOriginatorKeyFile>
@@ -62,7 +62,7 @@
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x86'">
     <DebugSymbols>true</DebugSymbols>
-    <OutputPath>bin\x86\Debug\</OutputPath>
+    <OutputPath>..\bin\Debug\</OutputPath>
     <DefineConstants>DEBUG;TRACE</DefineConstants>
     <RegisterForComInterop>true</RegisterForComInterop>
     <DebugType>full</DebugType>