support italics font in vim
remove code snippet completion in readme
add info to build vimproc plugin
add presistent abbreviation for abolish plugin

1. add vim/after/plugin/abolish.vim
2. add symbol link for it
fix typo error
<c-s> works normally
more bind in tmux

1. add binding to swap window
2. change binding to resize pane
3. change binding to swap pane
change snippet to generate vim modeline
add snippet to generate modeline for vim file
change plugin manager from vundle to neobundle