FEATURE: better email in support

FEATURE: new incoming_email model
FEATURE: infinite scrolling in emails admin
FEATURE: new 'emails:import' rake task

app/services/spam_rule/flag_sockpuppets.rb

@@ -21,6 +21,8 @@ class SpamRule::FlagSockpuppets
 
     !first_post.user.staff? &&
     !@post.user.staff? &&
+    !first_post.user.staged? &&
+    !@post.user.staged? &&
     @post.user != first_post.user &&
     @post.user.ip_address == first_post.user.ip_address &&
     @post.user.new_user? &&