rename common dir to shared
add sphinx build dir to wildignore for vim
fix broken shared symlink for perl
add alias for filtered grep
add ops hosts to ssh config
adjust ip for rerun in ssh config
reconfigure vim to overcome regexp performance issues
refine rc filetype in vimrc to exclude vim, zsh, etc.
toy around with vim memory settings
fix nohlsearch mapping in vimrc
add fancy tmux bindings for pipe and synchronize panes