diff --git a/lib/gretel.rb b/lib/gretel.rb
index 7694ead..e59ae64 100644
--- a/lib/gretel.rb
+++ b/lib/gretel.rb
@@ -21,7 +21,7 @@ def breadcrumb_paths
           Rails::Engine.subclasses.map(&:instance)
 
         engine_roots = engines.map { |e| e.config.root }
-        
+
         [*engine_roots, Rails.root].map do |root|
           [root.join("config", "breadcrumbs.rb"),
            root.join("config", "breadcrumbs", "**", "*.rb"),
@@ -59,7 +59,7 @@ def reload_environments
     end
 
     # Registers a style for later use.
-    # 
+    #
     #   Gretel.register_style :ul, { container_tag: :ul, fragment_tag: :li }
     def register_style(style, options)
       Gretel::Renderer.register_style style, options
@@ -69,7 +69,7 @@ def register_style(style, options)
     attr_writer :reload_environments
 
     # Yields this +Gretel+ to be configured.
-    # 
+    #
     #   Gretel.configure do |config|
     #     config.reload_environments << "staging"
     #   end
diff --git a/lib/gretel/crumb.rb b/lib/gretel/crumb.rb
index 5186695..5db0718 100644
--- a/lib/gretel/crumb.rb
+++ b/lib/gretel/crumb.rb
@@ -29,7 +29,7 @@ def link(*args)
 
       # Transform objects to real paths.
       url = url_for(url) if url
-      
+
       links << Gretel::Link.new(key, text, url, options)
     end
 
diff --git a/lib/gretel/deprecated.rb b/lib/gretel/deprecated.rb
index 64ac02b..9ad737c 100644
--- a/lib/gretel/deprecated.rb
+++ b/lib/gretel/deprecated.rb
@@ -1 +1 @@
-Dir[File.dirname(__FILE__) + "/deprecated/*.rb"].each { |file| require file }
\ No newline at end of file
+Dir[File.dirname(__FILE__) + "/deprecated/*.rb"].each { |file| require file }
diff --git a/lib/gretel/deprecated/default_style_key.rb b/lib/gretel/deprecated/default_style_key.rb
index dd4000c..39ca0ef 100644
--- a/lib/gretel/deprecated/default_style_key.rb
+++ b/lib/gretel/deprecated/default_style_key.rb
@@ -22,4 +22,4 @@ def options_for_style(style_key)
   end
 
   Gretel::Renderer.send :prepend, DeprecatedDefaultStyleKey
-end
\ No newline at end of file
+end
diff --git a/lib/gretel/deprecated/layout.rb b/lib/gretel/deprecated/layout.rb
index 2e2608d..e7cfd84 100644
--- a/lib/gretel/deprecated/layout.rb
+++ b/lib/gretel/deprecated/layout.rb
@@ -12,4 +12,4 @@ def layout(&block)
         "See https://github.com/lassebunk/gretel/blob/master/README.md for details.")
     end
   end
-end
\ No newline at end of file
+end
diff --git a/lib/gretel/link.rb b/lib/gretel/link.rb
index 0950adf..68071ad 100644
--- a/lib/gretel/link.rb
+++ b/lib/gretel/link.rb
@@ -36,4 +36,4 @@ def method_missing(method, *args, &block)
       end
     end
   end
-end
\ No newline at end of file
+end
diff --git a/lib/gretel/resettable.rb b/lib/gretel/resettable.rb
index 9f15a15..96a1fae 100644
--- a/lib/gretel/resettable.rb
+++ b/lib/gretel/resettable.rb
@@ -10,4 +10,4 @@ def reset!
       end
     end
   end
-end
\ No newline at end of file
+end
diff --git a/lib/gretel/view_helpers.rb b/lib/gretel/view_helpers.rb
index 93ceb75..7566e1b 100644
--- a/lib/gretel/view_helpers.rb
+++ b/lib/gretel/view_helpers.rb
@@ -1,11 +1,11 @@
 module Gretel
   module ViewHelpers
     # Sets the current breadcrumb to be rendered elsewhere. Put it somewhere in the view, preferably in the top, before you render any breadcrumbs HTML:
-    # 
+    #
     #   <% breadcrumb :category, @category %>
-    # 
+    #
     # If you pass an instance of an object that responds to +model_name+ (like an ActiveRecord model instance), the breadcrumb can be automatically inferred, so a shortcut for the above would be:
-    # 
+    #
     #   <% breadcrumb @category %>
     def breadcrumb(key = nil, *args)
       if key.nil? || key.is_a?(Hash)
@@ -15,15 +15,15 @@ def breadcrumb(key = nil, *args)
     end
 
     # Yields a block where inside the block you have a different breadcrumb than outside.
-    # 
+    #
     #   <% breadcrumb :about %>
-    # 
+    #
     #   <%= breadcrumbs # shows the :about breadcrumb %>
-    # 
+    #
     #   <% with_breadcrumb :product, Product.first do %>
     #     <%= breadcrumbs # shows the :product breadcrumb %>
     #   <% end %>
-    # 
+    #
     #   <%= breadcrumbs # shows the :about breadcrumb %>
     def with_breadcrumb(key, *args, &block)
       original_renderer = @_gretel_renderer
@@ -49,7 +49,7 @@ def breadcrumbs(options = {})
     end
 
     # Returns or yields parent breadcrumb (second-to-last in the trail) if it is present.
-    # 
+    #
     #   <% parent_breadcrumb do |link| %>
     #     <%= link_to link.text, link.url %> (<%= link.key %>)
     #   <% end %>