deployment with Capistrano 3 (affects foodcoops#148)

Gemfile.lock

@@ -4,6 +4,14 @@ GIT
   specs:
     localize_input (0.1.0)
 
+GIT
+  remote: git://github.com/capistrano/rvm.git
+  revision: 6aa7cb9d75361c802f466b54d0e345b7237ea3bb
+  specs:
+    capistrano-rvm (0.1.1)
+      capistrano (~> 3.0)
+      sshkit (~> 1.2)
+
 GIT
   remote: git://github.com/fnando/i18n-js.git
   revision: eab4137f83777963f0ebe6960704a7f64fd8911d
@@ -74,14 +82,16 @@ GEM
     bullet (4.7.1)
       activesupport
       uniform_notifier (>= 1.4.0)
-    capistrano (2.13.5)
-      highline
-      net-scp (>= 1.0.0)
-      net-sftp (>= 2.0.0)
-      net-ssh (>= 2.0.14)
-      net-ssh-gateway (>= 1.1.0)
-    capistrano-ext (1.2.1)
-      capistrano (>= 1.0.0)
+    capistrano (3.1.0)
+      i18n
+      rake (>= 10.0.0)
+      sshkit (~> 1.3)
+    capistrano-bundler (1.1.1)
+      capistrano (~> 3.0)
+      sshkit (>= 1.2.0)
+    capistrano-rails (1.1.0)
+      capistrano (>= 3.0.0)
+      capistrano-bundler (>= 1.0.0)
     capybara (2.2.1)
       mime-types (>= 1.16)
       nokogiri (>= 1.3.3)
@@ -143,7 +153,6 @@ GEM
       actionpack (>= 3.2, < 5)
       activesupport (>= 3.2, < 5)
     hashery (2.1.1)
-    highline (1.6.20)
     hike (1.2.3)
     i18n (0.6.9)
     i18n-spec (0.4.0)
@@ -191,11 +200,7 @@ GEM
     mysql2 (0.3.14)
     net-scp (1.1.2)
       net-ssh (>= 2.6.5)
-    net-sftp (2.1.2)
-      net-ssh (>= 2.6.5)
     net-ssh (2.7.0)
-    net-ssh-gateway (1.2.0)
-      net-ssh (>= 2.6.5)
     nokogiri (1.6.1)
       mini_portile (~> 0.5.0)
     pdf-reader (1.3.3)
@@ -321,6 +326,10 @@ GEM
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
     sqlite3 (1.3.8)
+    sshkit (1.3.0)
+      net-scp (>= 1.1.2)
+      net-ssh
+      term-ansicolor
     term-ansicolor (1.2.2)
       tins (~> 0.8)
     therubyracer (0.12.0)
@@ -370,8 +379,10 @@ DEPENDENCIES
   binding_of_caller
   bootstrap-datepicker-rails
   bullet
-  capistrano (= 2.13.5)
-  capistrano-ext
+  capistrano (~> 3.0)
+  capistrano-bundler (>= 1.1.0)
+  capistrano-rails
+  capistrano-rvm!
   capybara
   client_side_validations
   client_side_validations-simple_form