Remapped PEP8 to F8

Now it's

    PEP8 - F8
    flake8 - F7  ("f" vs. "7")

dotfiles/vim/bundle/pep8/ftplugin/python/pep8.vim

@@ -41,12 +41,12 @@ function! <SID>Pep8()
 endfunction
 
   if !exists('g:pep8_map')
-    let g:pep8_map='<F5>'
+    let g:pep8_map='<F8>'
   endif
 if ( !hasmapto('<SID>PEP8()') && (maparg(g:pep8_map) == '') )
   exe 'nnoremap <silent> '. g:pep8_map .' :call <SID>Pep8()<CR>'
-"  map <F5> :call <SID>Pep8()<CR>
-"  map! <F5> :call <SID>Pep8()<CR>
+"  map <F8> :call <SID>Pep8()<CR>
+"  map! <F8> :call <SID>Pep8()<CR>
 else
   if ( !has("gui_running") || has("win32") )
     echo "Python PEP8 Error: No Key mapped.\n".