Fix deploying on herbert

Gemfile

@@ -45,7 +45,7 @@ group :development do
   gem 'spring', '1.6.2'
 
   # Deployment
-  gem 'capistrano', '~> 3.1'
+  gem 'capistrano', '~> 3.4'
   gem 'capistrano-rails', '~> 1.1'
   gem 'capistrano-rvm'
   gem 'capistrano-rbenv'

Gemfile.lock

@@ -39,6 +39,8 @@ GEM
     airbrake (4.3.5)
       builder
       multi_json
+    airbrussh (1.3.0)
+      sshkit (>= 1.6.1, != 1.7.0)
     annotate (2.7.0)
       activerecord (>= 3.2, < 6.0)
       rake (~> 10.4)
@@ -52,10 +54,11 @@ GEM
     builder (3.2.3)
     byebug (10.0.2)
     cancancan (1.13.1)
-    capistrano (3.4.0)
+    capistrano (3.11.0)
+      airbrussh (>= 1.0.0)
       i18n
       rake (>= 10.0.0)
-      sshkit (~> 1.3)
+      sshkit (>= 1.9.0)
     capistrano-bundler (1.1.4)
       capistrano (~> 3.1)
       sshkit (~> 1.2)
@@ -174,7 +177,7 @@ GEM
     mysql2 (0.3.20)
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
-    net-ssh (3.0.2)
+    net-ssh (5.0.2)
     netrc (0.11.0)
     nokogiri (1.6.8.1)
       mini_portile2 (~> 2.1.0)
@@ -279,7 +282,7 @@ GEM
       activesupport (>= 3.0)
       sprockets (>= 2.8, < 4.0)
     sqlite3 (1.3.11)
-    sshkit (1.8.1)
+    sshkit (1.17.0)
       net-scp (>= 1.1.2)
       net-ssh (>= 2.8.0)
     term-ansicolor (1.3.2)
@@ -317,7 +320,7 @@ DEPENDENCIES
   bootstrap-will_paginate (= 0.0.10)
   byebug
   cancancan (= 1.13.1)
-  capistrano (~> 3.1)
+  capistrano (~> 3.4)
   capistrano-passenger
   capistrano-rails (~> 1.1)
   capistrano-rbenv

config/deploy/production.rb

@@ -1,4 +1,4 @@
-server 'tap.ugent.be', user: 'tap', roles: %w{web app db}, ssh_options: {
+server 'tap.zeus.gent', user: 'tap', roles: %w{web app db}, ssh_options: {
   forward_agent: true,
   auth_methods: ['publickey'],
   port: 2222