little-patch-for unite-colorscheme

patch

*** colorscheme.vim.orig	2011-06-28 21:43:56.000000000 +0900
--- colorscheme.vim	2011-06-28 21:44:41.000000000 +0900
***************
*** 8,14 ****
        \ }
  
  function! s:unite_source.hooks.on_init(args, context)
! 	let s:beforecolor = g:colors_name
  endfunction
  
  function! s:unite_source.hooks.on_close(args, context)
--- 8,18 ----
        \ }
  
  function! s:unite_source.hooks.on_init(args, context)
! 	if exists('g:colors_name') 
! 		let s:beforecolor = g:colors_name
! 	else
! 		let s:beforecolor = "default"
! 	endif
  endfunction
  
  function! s:unite_source.hooks.on_close(args, context)