Update references to distillery.init (#688)

There were few leftovers in the documentation still referring to
release.init.

docs/introduction/installation.md

@@ -14,13 +14,13 @@ end
 ## Initial configuration
 
 Once installed, you need to run a one-time setup task which creates the configuration file Distillery
-uses to define releases and environments. To do so, you just need to run the `release.init` task:
+uses to define releases and environments. To do so, you just need to run the `distillery.init` task:
 
     $ mix distillery.init
 
 
 !!! tip
-    To get more details about the `release.init` task, or any others, use the `help` task:
+    To get more details about the `distillery.init` task, or any others, use the `help` task:
 
         mix help distillery.init
 
@@ -31,7 +31,7 @@ here, depending on whether you want a default configuration that puts all applic
 in a single release (the default), or build a release for each application individually. You can always
 modify the generated config to define releases using whatever combination of applications you like.
 
-The output of `release.init` is a config file, `rel/config.exs`, which is an Elixir script much like
+The output of `distillery.init` is a config file, `rel/config.exs`, which is an Elixir script much like
 `config/config.exs`, and is used to define releases and environment-specific release configuration.
 An example of what those look like is below:
 

lib/distillery/tasks/clean.ex

@@ -61,7 +61,7 @@ defmodule Mix.Tasks.Distillery.Release.Clean do
           end
 
         false ->
-          Shell.error("You are missing a release config file. Run the release.init task first")
+          Shell.error("You are missing a release config file. Run the distillery.init task first")
           System.halt(1)
       end
 

lib/distillery/tasks/gen.appup.ex

@@ -51,7 +51,7 @@ defmodule Mix.Tasks.Distillery.Gen.Appup do
 
     case Config.get(opts) do
       {:error, {:config, :not_found}} ->
-        Shell.error("You are missing a release config file. Run the release.init task first")
+        Shell.error("You are missing a release config file. Run the distillery.init task first")
         System.halt(1)
 
       {:error, {:config, reason}} ->

lib/distillery/tasks/release.ex

@@ -9,7 +9,7 @@ defmodule Mix.Tasks.Distillery.Release do
     * `--profile` - selects both a release and environment, syntax for profiles is `name:env`
 
   Releases and environments are defined in `rel/config.exs`, created via
-  `release.init`. When determining the name and environment to use, refer to the
+  `distillery.init`. When determining the name and environment to use, refer to the
   definitions in that file if you are not sure what options are available.
 
     * `--erl`     - provide extra flags to `erl` when running the release, expects a string
@@ -62,7 +62,7 @@ defmodule Mix.Tasks.Distillery.Release do
       # Builds a release for a specific release environment
       MIX_ENV=prod mix distillery.release --env=dev
 
-  The default configuration produced by `release.init` will result in `mix distillery.release`
+  The default configuration produced by `distillery.init` will result in `mix distillery.release`
   selecting the first release in the config file (`rel/config.exs`), and the
   environment which matches the current Mix environment (i.e. the value of `MIX_ENV`).
   """
@@ -93,7 +93,7 @@ defmodule Mix.Tasks.Distillery.Release do
 
     case Config.get(opts) do
       {:error, {:config, :not_found}} ->
-        Shell.error("You are missing a release config file. Run the release.init task first")
+        Shell.error("You are missing a release config file. Run the distillery.init task first")
         System.halt(1)
 
       {:error, {:config, reason}} ->