Slightly improved e-mail notifications

app/views/notification_mailer/_status.text.erb

+<%= strip_tags(@status.content) %>
+
+<%= TagManager.instance.url_for(@status) %>

app/views/notification_mailer/favourite.text.erb

@@ -2,4 +2,4 @@
 
 Your status was favourited by <%= @account.acct %>:
 
-<%= account_stream_entry_url(@me, @status.stream_entry) %>
+<%= render partial: 'status' %>

app/views/notification_mailer/mention.text.erb

@@ -2,6 +2,4 @@
 
 You were mentioned by <%= @status.account.acct %> in:
 
-<%= strip_tags(@status.content) %>
-
-<%= TagManager.instance.url_for(@status) %>
+<%= render partial: 'status' %>

app/views/notification_mailer/reblog.text.erb

@@ -2,4 +2,4 @@
 
 Your status was reblogged by <%= @account.acct %>:
 
-<%= account_stream_entry_url(@me, @status.stream_entry) %>
+<%= render partial: 'status' %>