Merge in NervesHubLinkCommon (#120)

Migrate code back into the main library now that the HTTP version is
deprecated and doesn't work in NervesHub 2.0

.credo.exs

@@ -0,0 +1,18 @@
+# .credo.exs
+%{
+  configs: [
+    %{
+      name: "default",
+      strict: true,
+      checks: [
+        {Credo.Check.Design.TagTODO, false},
+        {Credo.Check.Refactor.MapInto, false},
+        {Credo.Check.Warning.LazyLogging, false},
+        {Credo.Check.Readability.LargeNumbers, only_greater_than: 86400},
+        {Credo.Check.Readability.ParenthesesOnZeroArityDefs, parens: true},
+        {Credo.Check.Readability.Specs, tags: []},
+        {Credo.Check.Readability.StrictModuleLayout, tags: []}
+      ]
+    }
+  ]
+}

CHANGELOG.md

@@ -108,7 +108,7 @@ This release only bumps the version number. It doesn't have any code changes.
   * This enforces the update data structure exchanged between device and server
     and is mostly internal. However, if you implement your own `NervesHubLink.Client`
     behavior, then you will need to your `NervesHubLink.Client.update_available/1` to
-    accept a `%NervesHubLinkCommon.Message.UpdateInfo{}` struct as the parameter
+    accept a `%NervesHubLink.Message.UpdateInfo{}` struct as the parameter
     instead of a map with string keys which was used until this point.
 
 * Enhancements

lib/nerves_hub_link.ex

@@ -29,8 +29,8 @@ defmodule NervesHubLink do
   @doc """
   Current status of the update manager
   """
-  @spec status :: NervesHubLinkCommon.UpdateManager.State.status()
-  defdelegate status(), to: NervesHubLinkCommon.UpdateManager
+  @spec status :: NervesHubLink.UpdateManager.State.status()
+  defdelegate status(), to: NervesHubLink.UpdateManager
 
   @doc """
   Restart the socket and device channel

lib/nerves_hub_link/application.ex

@@ -5,8 +5,8 @@ defmodule NervesHubLink.Application do
   alias NervesHubLink.Configurator
   alias NervesHubLink.Connection
   alias NervesHubLink.Socket
-  alias NervesHubLinkCommon.FwupConfig
-  alias NervesHubLinkCommon.UpdateManager
+  alias NervesHubLink.FwupConfig
+  alias NervesHubLink.UpdateManager
 
   def start(_type, _args) do
     config = Configurator.build()

lib/nerves_hub_link/client.ex

@@ -39,7 +39,7 @@ defmodule NervesHubLink.Client do
   require Logger
 
   @typedoc "Update that comes over a socket."
-  @type update_data :: NervesHubLinkCommon.Message.UpdateInfo.t()
+  @type update_data :: NervesHubLink.Message.UpdateInfo.t()
 
   @typedoc "Supported responses from `update_available/1`"
   @type update_response :: :apply | :ignore | {:reschedule, pos_integer()}