更新fix molokai主题列定位，更新README.md
重新整理README,增加一些问题解决方案，优化排版等
update README
增加buffer管理插件minibufexpl
去掉独立的mru插件，使用ctrlp的mru功能，快捷键保持不变
update plugin configs
更新几个插件的源，重新梳理插件快捷键，重整隶属，重排版README
update readme
更新代码补全片段
update
update README.md
增加快捷键 ,+空格，去除行尾空格
add a article to readme
修复ctrl+m 多光标操作选择的bug，但是改变了ctrl+v进行字符选中时将包含光标下的字符
修订了若干错别字
Merge pull request #10 from spacewander/master

修订了若干错别字
add some python snippets
更新linux安装步骤中YCM依赖包安装命令；gull
update vimrc for vim74 compatibility

all about line number
1. add norelativenumber! in key map <F2>:
nnoremap <F2> :set norelativenumber! nonumber! number?<CR>
2. when change status between number and relativenumber, shutdown the other one first:
au FocusLost * :set norelativenumber number
au FocusGained * :set nonumber relativenumber
" 插入模式下用绝对行号, 普通模式下用相对
autocmd InsertEnter * :set norelativenumber number
autocmd InsertLeave * :set nonumber relativenumber
function! NumberToggle()
  if(&relativenumber == 1)
    set norelativenumber number
  else
    set nonumber relativenumber
  endif
endfunc
nnoremap <C-n> :call NumberToggle()<cr>
update relativenumber-related setting: 1. set number always on; 2. repair F2 map, it deals with all kinds of number and relativenumber status now