Remove trailing whitespace
Markdown-mode : recognize common extensions, enably flyspell mode for writing.
El4Ruby initialization for Xiki, still needs tweaking so commented out ATM
Tweaks to wrap up the switch from RVM to Chruby
Add ELPA/MELPA package init to main init.el for deterministic load order.
Disable tabs, I prefer spaces.
Use ruby-mode on .xml.builder files
Switch to Hyper key for custom source code related commands.
Enable column-number-mode in source files, consider (e)lisp files source files.
Added link to RESOURCES for navigation per indentation block.

I haven't added this yet since it is written for Python/YAML with semantic indentation, whereas I would need a variant for ruby style indentation. Will investigate