Fix tests

config/database.yml

@@ -1,6 +1,6 @@
 default: &default
   adapter: postgresql
-  pool: 15
+  pool: 17
   timeout: 5000
   encoding: unicode
 

config/initializers/rack-mini-profiler.rb

@@ -1,2 +1,4 @@
-Rails.application.middleware.swap(Rack::Deflater, Rack::MiniProfiler)
-Rails.application.middleware.swap(Rack::MiniProfiler, Rack::Deflater)
+unless Rails.env == 'test'
+  Rails.application.middleware.swap(Rack::Deflater, Rack::MiniProfiler)
+  Rails.application.middleware.swap(Rack::MiniProfiler, Rack::Deflater)
+end