[Integrator] Update copy regarding opening workspace

Closes #2996

CHANGELOG.md

@@ -4,6 +4,16 @@ To install or update CocoaPods see this [guide](http://docs.cocoapods.org/guides
 
 To install release candidates run `[sudo] gem install cocoapods --pre`
 
+## Master
+
+##### Enhancements
+
+* Explicitly inform the user to close existing project when switching to
+  a workspace for the first time.  
+  [Kyle Fuller](https://github.com/kylef)
+  [#2996](https://github.com/CocoaPods/CocoaPods/issues/2996)
+
+
 ## 0.36.0.beta.2
 
 [Xcodeproj](https://github.com/CocoaPods/Xcodeproj/compare/0.21.0...0.21.2)

lib/cocoapods/installer/user_project_integrator.rb

@@ -94,7 +94,7 @@ module Pod
           end
 
         else
-          UI.notice "From now on use `#{workspace_path.basename}`."
+          UI.notice "Please close any current Xcode sessions and use `#{workspace_path.basename}` for this project from now on."
           workspace = Xcodeproj::Workspace.new(*file_references)
           workspace.save_as(workspace_path)
         end

cocoapods-integration-specs @ e6fde491

-Subproject commit d147186c6566ccb3bf1765a258f28c5736b655c6
+Subproject commit e6fde491a0862756f848becfffea8e679e9269f6