Keep shell script phase simple and static

The copy resources shell script phase was previously updated every 
time the pods were changed.  This moves the updates to the integration 
library copy resources script and restores the original static single 
line from before the per pod library code.

lib/cocoapods/installer/target_installer.rb

@@ -217,11 +217,20 @@ module Pod
       def create_copy_resources_script
         path = library.copy_resources_script_path
         UI.message "- Generating copy resources script at #{UI.path(path)}" do
-          resources = library.file_accessors.map { |accessor| accessor.resources.flatten.map {|res| project.relativize(res)} }.flatten
-          resources << bridge_support_file if bridge_support_file
-          generator = Generator::CopyResourcesScript.new(resources)
-          generator.save_as(path)
-          add_file_to_support_group(path)
+          if library.spec
+            resources = library.file_accessors.map { |accessor| accessor.resources.flatten.map {|res| project.relativize(res)} }.flatten
+            resources << bridge_support_file if bridge_support_file
+            generator = Generator::CopyResourcesScript.new(resources)
+            generator.save_as(path)
+            add_file_to_support_group(path)
+          else
+            path.open('w') do |script|
+              library.libraries.each do |lib|
+                script.puts "#{lib.copy_resources_script_relative_path}\n"
+              end
+            end
+            system("chmod +x '#{path}'")
+          end
         end
       end
 

lib/cocoapods/installer/user_project_integrator/target_integrator.rb

@@ -133,9 +133,8 @@ module Pod
           native_targets.each do |native_target|
             phase = native_target.shell_script_build_phases.select { |bp| bp.name == phase_name }.first ||
                     native_target.new_shell_script_build_phase(phase_name)
-            phase.shell_script = target.libraries.map do |lib|
-              "#{lib.copy_resources_script_relative_path}"
-            end.join("\n")
+            path  = target.copy_resources_script_relative_path
+            phase.shell_script = %{"#{path}"\n}
           end
         end