Update 2 NuGet dependencies

Author: nfbot

Tests/Aws.IoTCore.Devices.UnitTests.nfproj

@@ -41,7 +41,7 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="nanoFramework.Json, Version=2.1.2.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.Json.2.1.2-preview.27\lib\nanoFramework.Json.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.Json.2.1.2-preview.29\lib\nanoFramework.Json.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="nanoFramework.System.Collections, Version=1.4.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">

Tests/packages.config

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="nanoFramework.CoreLibrary" version="1.12.0-preview.5" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.Json" version="2.1.2-preview.27" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.Json" version="2.1.2-preview.29" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Collections" version="1.4.0-preview.12" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Text" version="1.1.3-preview.11" targetFramework="netnanoframework10" />
   <package id="nanoFramework.TestFramework" version="1.0.173" targetFramework="netnanoframework10" developmentDependency="true" />

nanoFramework.Aws.IoTCore.Devices.nuspec

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <package xmlns="http://schemas.microsoft.com/packaging/2012/06/nuspec.xsd">
   <metadata>
     <id>nanoFramework.Aws.IoTCore.Devices</id>
@@ -21,8 +21,8 @@ This is an SDK for Aws IoTCore.</description>
     <tags>nanoFramework C# csharp netmf netnf AWS IoTCore nanoFramework.Aws.IoTCore.Devices</tags>
     <dependencies>
       <dependency id="nanoFramework.CoreLibrary" version="1.12.0-preview.5" />
-      <dependency id="nanoFramework.Json" version="2.1.2-preview.27" />
-      <dependency id="nanoFramework.M2Mqtt" version="5.0.2-preview.68" />
+      <dependency id="nanoFramework.Json" version="2.1.2-preview.29" />
+      <dependency id="nanoFramework.M2Mqtt" version="5.0.2-preview.70" />
       <dependency id="nanoFramework.Runtime.Events" version="1.10.0-preview.6" />
       <dependency id="nanoFramework.Runtime.Native" version="1.5.4-preview.3" />
       <dependency id="nanoFramework.System.Collections" version="1.4.0-preview.12" />

nanoFramework.Aws.IoTCore.Devices/nanoFramework.Aws.IoTCore.Devices.nfproj

@@ -49,11 +49,11 @@
       <Private>True</Private>
     </Reference>
     <Reference Include="nanoFramework.Json, Version=2.1.2.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.Json.2.1.2-preview.27\lib\nanoFramework.Json.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.Json.2.1.2-preview.29\lib\nanoFramework.Json.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="nanoFramework.M2Mqtt, Version=5.0.2.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.M2Mqtt.5.0.2-preview.68\lib\nanoFramework.M2Mqtt.dll</HintPath>
+      <HintPath>..\packages\nanoFramework.M2Mqtt.5.0.2-preview.70\lib\nanoFramework.M2Mqtt.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="nanoFramework.Runtime.Events, Version=1.10.0.0, Culture=neutral, PublicKeyToken=c07d481e9758c731">

nanoFramework.Aws.IoTCore.Devices/packages.config

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="nanoFramework.CoreLibrary" version="1.12.0-preview.5" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.Json" version="2.1.2-preview.27" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.M2Mqtt" version="5.0.2-preview.68" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.Json" version="2.1.2-preview.29" targetFramework="netnanoframework10" />
+  <package id="nanoFramework.M2Mqtt" version="5.0.2-preview.70" targetFramework="netnanoframework10" />
   <package id="nanoFramework.Runtime.Events" version="1.10.0-preview.6" targetFramework="netnanoframework10" />
   <package id="nanoFramework.Runtime.Native" version="1.5.4-preview.3" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Collections" version="1.4.0-preview.12" targetFramework="netnanoframework10" />