Do not start :debugger and :dialyzer apps to avoid depending on :wx (elixir-editors#388)

Fixes elixir-editors#387

Author: lukaszsamson

apps/elixir_ls_debugger/mix.exs

@@ -14,12 +14,13 @@ defmodule ElixirLS.Debugger.Mixfile do
       start_permanent: true,
       build_per_environment: false,
       consolidate_protocols: false,
-      deps: deps()
+      deps: deps(),
+      xref: [exclude: [:int, :dbg_iserver]]
     ]
   end
 
   def application do
-    [mod: {ElixirLS.Debugger, []}, extra_applications: [:mix, :logger, :debugger]]
+    [mod: {ElixirLS.Debugger, []}, extra_applications: [:mix, :logger]]
   end
 
   defp deps do

apps/language_server/mix.exs

@@ -21,7 +21,7 @@ defmodule ElixirLS.LanguageServer.Mixfile do
   end
 
   def application do
-    [mod: {ElixirLS.LanguageServer, []}, extra_applications: [:mix, :logger, :dialyzer]]
+    [mod: {ElixirLS.LanguageServer, []}, extra_applications: [:mix, :logger]]
   end
 
   defp deps do

mix.exs

@@ -11,7 +11,7 @@ defmodule ElixirLS.Mixfile do
       deps: deps(),
       elixir: ">= 1.8.0",
       dialyzer: [
-        plt_add_apps: [:dialyxir],
+        plt_add_apps: [:dialyxir, :debugger, :dialyzer, :hipe],
         flags: [
           # enable only to verify error handling
           # :unmatched_returns,