User Profile enhancements:

- Added PreloadStore support to avoid duplicate requests
- preliminary SEO
- Support for opengraph/twitter cards

lib/summarize.rb

@@ -0,0 +1,26 @@
+# Summarize a HTML field into regular text. Used currently
+# for meta tags
+
+class Summarize
+  include ActionView::Helpers
+
+  def initialize(text)
+    @text = text
+  end
+
+  def self.max_length
+    500
+  end
+
+  def summary
+    return nil if @text.blank?
+
+    result = sanitize(@text, tags: [], attributes: [])
+    result.gsub!(/\n/, ' ')
+    result.strip!
+
+    return result if result.length <= Summarize.max_length
+    "#{result[0..Summarize.max_length]}..."
+  end
+
+end