diff --git a/Dockerfile b/Dockerfile
index f5eb0889..c28287cc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,13 @@
 FROM ruby:2.3.1-alpine
 
+LABEL maintainer="https://github.com/tootsuite/mastodon" \
+      description="A GNU Social-compatible microblogging server"
+
 ENV RAILS_ENV=production \
     NODE_ENV=production
 
+EXPOSE 3000 4000
+
 WORKDIR /mastodon
 
 COPY Gemfile Gemfile.lock package.json yarn.lock /mastodon/
diff --git a/README.md b/README.md
index db60b66f..9b43e807 100644
--- a/README.md
+++ b/README.md
@@ -65,6 +65,8 @@ Consult the example configuration file, `.env.production.sample` for the full li
 
 ## Running with Docker and Docker-Compose
 
+[![](https://images.microbadger.com/badges/version/gargron/mastodon.svg)](https://microbadger.com/images/gargron/mastodon "Get your own version badge on microbadger.com") [![](https://images.microbadger.com/badges/image/gargron/mastodon.svg)](https://microbadger.com/images/gargron/mastodon "Get your own image badge on microbadger.com")
+
 The project now includes a `Dockerfile` and a `docker-compose.yml`. You need to turn `.env.production.sample` into `.env.production` with all the variables set before you can:
 
     docker-compose build
diff --git a/Vagrantfile b/Vagrantfile
index b93ec9fa..cd7f7447 100644
--- a/Vagrantfile
+++ b/Vagrantfile
@@ -84,6 +84,16 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
   config.vm.provider :virtualbox do |vb|
     vb.name = "mastodon"
     vb.customize ["modifyvm", :id, "--memory", "1024"]
+
+    # Disable VirtualBox DNS proxy to skip long-delay IPv6 resolutions.
+    # https://github.com/mitchellh/vagrant/issues/1172
+    vb.customize ["modifyvm", :id, "--natdnsproxy1", "off"]
+    vb.customize ["modifyvm", :id, "--natdnshostresolver1", "off"]
+
+    # Use "virtio" network interfaces for better performance.
+    vb.customize ["modifyvm", :id, "--nictype1", "virtio"]
+    vb.customize ["modifyvm", :id, "--nictype2", "virtio"]
+
   end
 
   config.vm.hostname = "mastodon.dev"
@@ -91,9 +101,9 @@ Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
   # This uses the vagrant-hostsupdater plugin, and lets you
   # access the development site at http://mastodon.dev.
   # To install:
-  #   $ vagrant plugin install hostsupdater
+  #   $ vagrant plugin install vagrant-hostsupdater
   if defined?(VagrantPlugins::HostsUpdater)
-    config.vm.network :private_network, ip: "192.168.42.42"
+    config.vm.network :private_network, ip: "192.168.42.42", nictype: "virtio"
     config.hostsupdater.remove_on_suspend = false
   end
 
diff --git a/app/assets/images/background-photo.jpeg b/app/assets/images/background-photo.jpeg
index b0a88ff3..d7937fd4 100644
Binary files a/app/assets/images/background-photo.jpeg and b/app/assets/images/background-photo.jpeg differ
diff --git a/db/migrate/20170406215816_add_notifications_and_favourites_indices.rb b/db/migrate/20170406215816_add_notifications_and_favourites_indices.rb
new file mode 100644
index 00000000..00e41bf3
--- /dev/null
+++ b/db/migrate/20170406215816_add_notifications_and_favourites_indices.rb
@@ -0,0 +1,7 @@
+class AddNotificationsAndFavouritesIndices < ActiveRecord::Migration[5.0]
+  def change
+    add_index :notifications, [:activity_id, :activity_type]
+    add_index :accounts, :url
+    add_index :favourites, :status_id
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index b5d55fa1..fe9b8dd4 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170405112956) do
+ActiveRecord::Schema.define(version: 20170406215816) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -49,6 +49,7 @@ ActiveRecord::Schema.define(version: 20170405112956) do
     t.integer  "following_count",         default: 0,     null: false
     t.index "(((setweight(to_tsvector('simple'::regconfig, (display_name)::text), 'A'::\"char\") || setweight(to_tsvector('simple'::regconfig, (username)::text), 'B'::\"char\")) || setweight(to_tsvector('simple'::regconfig, (COALESCE(domain, ''::character varying))::text), 'C'::\"char\")))", name: "search_index", using: :gin
     t.index "lower((username)::text), lower((domain)::text)", name: "index_accounts_on_username_and_domain_lower", using: :btree
+    t.index ["url"], name: "index_accounts_on_url", using: :btree
     t.index ["username", "domain"], name: "index_accounts_on_username_and_domain", unique: true, using: :btree
   end
 
@@ -75,6 +76,7 @@ ActiveRecord::Schema.define(version: 20170405112956) do
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
     t.index ["account_id", "status_id"], name: "index_favourites_on_account_id_and_status_id", unique: true, using: :btree
+    t.index ["status_id"], name: "index_favourites_on_status_id", using: :btree
   end
 
   create_table "follow_requests", force: :cascade do |t|
@@ -128,6 +130,7 @@ ActiveRecord::Schema.define(version: 20170405112956) do
     t.datetime "updated_at", null: false
     t.index ["account_id", "status_id"], name: "index_mentions_on_account_id_and_status_id", unique: true, using: :btree
     t.index ["status_id"], name: "index_mentions_on_status_id", using: :btree
+    t.index ["status_id"], name: "mentions_status_id_index", using: :btree
   end
 
   create_table "mutes", force: :cascade do |t|
@@ -146,6 +149,7 @@ ActiveRecord::Schema.define(version: 20170405112956) do
     t.datetime "updated_at",      null: false
     t.integer  "from_account_id"
     t.index ["account_id", "activity_id", "activity_type"], name: "account_activity", unique: true, using: :btree
+    t.index ["activity_id", "activity_type"], name: "index_notifications_on_activity_id_and_activity_type", using: :btree
   end
 
   create_table "oauth_access_grants", force: :cascade do |t|