Use released webpacker

Gemfile

@@ -14,7 +14,7 @@ gem "capybara", ">= 2.15"
 gem "rack-cache", "~> 1.2"
 gem "sass-rails"
 gem "turbolinks", "~> 5"
-gem "webpacker", github: "rails/webpacker", require: ENV["SKIP_REQUIRE_WEBPACKER"] != "true"
+gem "webpacker", ">= 4.0.0.rc.3", require: ENV["SKIP_REQUIRE_WEBPACKER"] != "true"
 # require: false so bcrypt is loaded only when has_secure_password is used.
 # This is to avoid Active Model (and by extension the entire framework)
 # being dependent on a binary library.

Gemfile.lock

@@ -15,15 +15,6 @@ GIT
     queue_classic (3.2.0.RC1)
       pg (>= 0.17, < 2.0)
 
-GIT
-  remote: https://github.com/rails/webpacker.git
-  revision: bb132d591da35095e3246082cba3d693f847e0b5
-  specs:
-    webpacker (4.0.0.pre.3)
-      activesupport (>= 4.2)
-      rack-proxy (>= 0.6.1)
-      railties (>= 4.2)
-
 PATH
   remote: .
   specs:
@@ -513,6 +504,10 @@ GEM
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff
+    webpacker (4.0.0.rc.3)
+      activesupport (>= 4.2)
+      rack-proxy (>= 0.6.1)
+      railties (>= 4.2)
     websocket (1.2.8)
     websocket-driver (0.7.0)
       websocket-extensions (>= 0.1.0)
@@ -590,7 +585,7 @@ DEPENDENCIES
   w3c_validators
   wdm (>= 0.1.0)
   webmock
-  webpacker!
+  webpacker (>= 4.0.0.rc.3)
   websocket-client-simple!
 
 BUNDLED WITH

railties/lib/rails/generators/app_base.rb

@@ -316,7 +316,7 @@ def webpacker_gemfile_entry
         if options.dev? || options.edge?
           GemfileEntry.github "webpacker", "rails/webpacker", nil, "Use development version of Webpacker"
         else
-          GemfileEntry.new "webpacker", nil, "Transpile app-like JavaScript. Read more: https://github.com/rails/webpacker"
+          GemfileEntry.version "webpacker", ">= 4.0.0.rc.3", "Transpile app-like JavaScript. Read more: https://github.com/rails/webpacker"
         end
       end