use autocompletion, yaml and pp when using irb
add another ls/cd-alias to pretty print directory contents
add bash-completion for homebrew, rails, git, tmux
add reference to issue #4 in the comment at the related line
add empty offlineimaprc-file as a starter (I always wanted to migrate to offlineimap!)
add comments explaining the purpose of sourcing all the other files
Merge branch 'master' of bitbucket.org:engeld/dotfiles

* 'master' of bitbucket.org:engeld/dotfiles:
  add comments explaining the purpose of sourcing all the other files
add initial tmux-conf