Faster tests (#1686)

CONTRIBUTING.md

@@ -62,6 +62,8 @@ Pull Requests fixing bugs, implementing new features, or updating documentation
 	```
 	bundle exec rake test
 	```
+	
+To profile slow tests, you can use `bundle exec rake test TESTOPTS="--verbose"`.
 
 ### Working with test repositories
 

Gemfile

@@ -6,5 +6,4 @@ end
 
 gemspec
 
-gem "rake", '~> 13.0'
-
+gem 'rake', '~> 13.0'

lib/gollum/app.rb

@@ -117,7 +117,7 @@ module Precious
       @js  = settings.wiki_options[:js]
       @mathjax_config = settings.wiki_options[:mathjax_config]
 
-      @use_static_assets = settings.wiki_options.fetch(:static, settings.environment == :production || settings.environment == :staging)
+      @use_static_assets = settings.wiki_options.fetch(:static, settings.environment != :development)
       @static_assets_path = settings.wiki_options.fetch(:static_assets_path, ::File.join(File.dirname(__FILE__), 'public/assets'))
       @mathjax_path = ::File.join(File.dirname(__FILE__), 'public/gollum/javascript/MathJax')