MBO questions

MBO answers

• Make one gsub call instead of five
• how to create an app-wide object
• Rails 3.1 Having iframe in view makes layout stop rendering
• One-liner to recursively list directories in Ruby?
• How do I retrieve a list of created IDs for bulk insert in Active Record?
• How can I use a regular expression to validate month input?
• Wishlist relationships in Rails?
• (g)vim replace regex
• Retroactively squashing a subtree merge
• question about overriding initialize method