Remove duplicate subtitle generation

Theme already has it, maybe it is new?
Update config, prepping for mjwall.com
Bonus, coderwall

Not documented where I could find, but I saw the icon in the theme.  Nice.
Used exitwp to import old posts.

See https://github.com/thomasf/exitwp.  Worked great.
Also used alias_generator from
https://raw.github.com/tsmango/jekyll_alias_generator/master/_plugins/alias_generator.rb
to setup aliases for the old post so the old links still work.  Bonus
Modify greyshade

Gravatar tweak
Update octopress post

Also update today.  Good for now