Change startup command: 'last' -> 'last |head -n 8'
delete $GEM_HOME and remove it from $PATH
add an alias to set the parameter '-d 1' to 'top' command
add a setting for zsh-completion
add settings for vim-ref to search from refe
add settings for unite.vim to use fuzzy-matching
add a keymap of recurive file search with unite.vim
clean the code of the 'for unite.vim' part of .vimrc