Emit 'vagrant-mounted' on Ubuntu in mount_virtualbox_shared_folder capability

Also includes the same, but commented out, for mount_nfs capability

plugins/guests/ubuntu/cap/mount_nfs.rb

@@ -0,0 +1,18 @@
+require_relative '../../linux/cap/mount_nfs'
+
+module VagrantPlugins
+  module GuestUbuntu
+    module Cap
+      class MountNFS < GuestLinux::Cap::MountNFS
+        def self.mount_nfs_folder(machine, ip, folders)
+          super
+          # Emit an upstart events if upstart is available
+          folders.each do |name, opts|
+            real_guestpath =  machine.guest.capability(:shell_expand_guest_path, opts[:guestpath])
+            machine.communicate.sudo("[ -x /sbin/initctl ] && /sbin/initctl emit vagrant-mounted MOUNTPOINT=#{real_guestpath}")
+          end
+        end
+      end
+    end
+  end
+end

plugins/guests/ubuntu/cap/mount_virtualbox_shared_folder.rb

@@ -0,0 +1,14 @@
+require_relative '../../linux/cap/mount_virtualbox_shared_folder'
+
+module VagrantPlugins
+  module GuestUbuntu
+    module Cap
+      class MountVirtualBoxSharedFolder < GuestLinux::Cap::MountVirtualBoxSharedFolder
+        def self.mount_virtualbox_shared_folder(machine, name, guestpath, options)
+          super
+          machine.communicate.sudo("[ -x /sbin/initctl ] && /sbin/initctl emit vagrant-mounted MOUNTPOINT=#{guestpath}")
+        end
+      end
+    end
+  end
+end

plugins/guests/ubuntu/plugin.rb

@@ -15,6 +15,17 @@ module VagrantPlugins
         require_relative "cap/change_host_name"
         Cap::ChangeHostName
       end
+
+      guest_capability("ubuntu", "mount_virtualbox_shared_folder") do
+        require_relative "cap/mount_virtualbox_shared_folder"
+        Cap::MountVirtualBoxSharedFolder
+      end
+
+      #I don't know if this works or not
+      #guest_capability("linux", "mount_nfs_folder") do
+      #  require_relative "cap/mount_nfs"
+      #  Cap::MountNFS
+      #end
     end
   end
 end