link to public feed of the person on the profile person show page instead of to the one of current_user

fixed #700
fixed #864
fixed #774

app/models/person.rb

@@ -114,7 +114,12 @@ class Person < ActiveRecord::Base
   end
 
   def public_url
-    "#{url}public/#{self.owner.username}"
+    if self.owner
+      username = self.owner.username
+    else
+      username = self.diaspora_handle.split("@")[0]
+    end
+    "#{url}public/#{username}"
   end
 
   def public_key_hash

app/models/status_message.rb

@@ -37,7 +37,7 @@ class StatusMessage < Post
     return self.raw_message unless self.raw_message
     people = self.mentioned_people
     regex = /@\{([^;]+); ([^\}]+)\}/
-    escaped_message = ERB::Util.h(raw_message)
+    escaped_message = opts[:plain_text] ? raw_message : ERB::Util.h(raw_message)
     form_message = escaped_message.gsub(regex) do |matched_string|
       inner_captures = matched_string.match(regex).captures
       person = people.detect{ |p|
@@ -87,8 +87,8 @@ class StatusMessage < Post
   def to_activity
     <<-XML
   <entry>
-    <title>#{x(self.message)}</title>
-    <link rel="alternate" type="text/html" href="#{person.url}status_messages/#{self.id}"/>
+    <title>#{x(self.formatted_message(:plain_text => true))}</title>
+    <link rel="alternate" type="text/html" href="#{person.url}p/#{self.id}"/>
     <id>#{person.url}posts/#{self.id}</id>
     <published>#{self.created_at.xmlschema}</published>
     <updated>#{self.updated_at.xmlschema}</updated>

app/views/layouts/application.html.haml

@@ -70,8 +70,10 @@
         } catch( err ) {}
 
 
-    - if current_user
-      %link{:rel => "alternate", :href => "#{current_user.public_url}", :type => "application/atom+xml", :title => "Public Diaspora Feed for #{current_user.name}"}
+    - if @person
+      %link{:rel => "alternate", :href => "#{@person.public_url}", :type => "application/atom+xml", :title => "#{t('.public_feed', :name => @person.name)}"}
+    - elsif current_user
+      %link{:rel => "alternate", :href => "#{current_user.public_url}", :type => "application/atom+xml", :title => "#{t('.public_feed', :name => current_user.name)}"}
 
   %body
     - unless @landing_page

config/locales/diaspora/en.yml

@@ -112,6 +112,7 @@ en:
         your_aspects: "your aspects"
         logged_in_as: "logged in as %{name}"
         toggle: "toggle mobile site"
+        public_feed: "Public Diaspora Feed for %{name}"
   shared:
       publisher:
           mention_helper_text: "to mention someone, press '@' and start typing their name"