Add bundle console alias.
Get rid of some old unused aliases.
Update tail aliases.
Merge branch 'master' of https://github.com/delynn/dotfiles

* 'master' of https://github.com/delynn/dotfiles:
  Conditionally source the boxen environment.
  Update irbrc.
  Updated readme.
  Remove erb since all options are now set.
  Fix options sent to gem command.
  Get gemrc up to date.
Git config cleanup.
Improve git pager.