Minor template fixes

- The OTP app template now adds the supevisor
- The default apps_dir value does not contain the trailing '/' that the
  template index already added.

priv/templates/app.template

@@ -4,6 +4,7 @@
     {desc, "An OTP application", "Short description of the app"}
 ]}.
 {template, "app.erl.dtl", "{{name}}/src/{{name}}_app.erl"}.
+{template, "sup.erl.dtl", "{{name}}/src/{{name}}_sup.erl"}.
 {template, "otp_app.app.src.dtl", "{{name}}/src/{{name}}.app.src"}.
 {template, "rebar.config.dtl", "{{name}}/rebar.config"}.
 {template, "gitignore.dtl", "{{name}}/.gitignore"}.

src/rebar_templater.erl

@@ -138,7 +138,7 @@ default_variables() ->
      {author_name, "Anonymous"},
      {author_email, "anonymous@example.org"},
      {copyright_year, integer_to_list(Y)},
-     {apps_dir, "apps/", "Directory where applications will be created if needed"}].
+     {apps_dir, "apps", "Directory where applications will be created if needed"}].
 
 %% Load variable definitions from the 'Globals' file in the home template
 %% directory