prevent warning message about already defined constants

lib/oneboxer/handlebars_onebox.rb

@@ -5,7 +5,9 @@ module Oneboxer
 
   class HandlebarsOnebox < BaseOnebox
 
-    MAX_TEXT = 500
+    unless defined? MAX_TEXT
+     MAX_TEXT = 500
+    end
 
     def self.template_path(template_name)
       "#{Rails.root}/lib/oneboxer/templates/#{template_name}.hbrs"

lib/oneboxer/oembed_onebox.rb

@@ -5,8 +5,6 @@ module Oneboxer
 
   class OembedOnebox < HandlebarsOnebox
 
-    MAX_TEXT = 500
-
     def oembed_endpoint
       @url
     end
@@ -16,12 +14,10 @@ module Oneboxer
     end
 
     def onebox
-
       parsed = JSON.parse(open(oembed_endpoint).read)
 
       # If it's a video, just embed the iframe
       if %w(video rich).include?(parsed['type'])
-
         # Return a preview of the thumbnail url, since iframes don't do well on previews
         preview = nil
         preview = "<img src='#{parsed['thumbnail_url']}'>" if parsed['thumbnail_url'].present?
@@ -35,7 +31,6 @@ module Oneboxer
       parsed['html'] ||= parsed['abstract']
       parsed['host'] = nice_host
 
-
       Mustache.render(File.read(template), parsed)
     rescue OpenURI::HTTPError
       nil