Support g:EasyMotion_do_shade for overwin motions with improved hangling

• Support g:EasyMotion_do_shade for overwin motions with improved hangling than
  other easy motions if Vim has patch 7.4.792.
• fix some bugs (#265)

EasyMotion now supports moving cursor over/across windows

🎉 New features in version 3.0 🎉

Overwin motions

EasyMotion now supports moving cursor across/over window.
Since it doesn't make sense that moving cursor to other window while Visual or
Operator-pending mode, overwin motions only provides mappings for Normal
mode. Please use nmap to use overwin motions. Overwin motions only
supports bi-directional motions.

Example configuration

" <Leader>f{char} to move to {char}
map  <Leader>f <Plug>(easymotion-bd-f)
nmap <Leader>f <Plug>(easymotion-overwin-f)

" s{char}{char} to move to {char}{char}
nmap s <Plug>(easymotion-overwin-f2)

" Move to line
map <Leader>L <Plug>(easymotion-bd-jk)
nmap <Leader>L <Plug>(easymotion-overwin-line)

" Move to word
map  <Leader>w <Plug>(easymotion-bd-w)
nmap <Leader>w <Plug>(easymotion-overwin-w)

Integration with incsearch.vim

• haya14busa/incsearch.vim
• haya14busa/incsearch-easymotion.vim

" You can use other keymappings like <C-l> instead of <CR> if you want to
" use these mappings as default search and somtimes want to move cursor with
" EasyMotion.
function! s:incsearch_config(...) abort
  return incsearch#util#deepextend(deepcopy({
  \   'modules': [incsearch#config#easymotion#module({'overwin': 1})],
  \   'keymap': {
  \     "\<CR>": '<Over>(easymotion)'
  \   },
  \   'is_expr': 0
  \ }), get(a:, 1, {}))
endfunction

noremap <silent><expr> /  incsearch#go(<SID>incsearch_config())
noremap <silent><expr> ?  incsearch#go(<SID>incsearch_config({'command': '?'}))
noremap <silent><expr> g/ incsearch#go(<SID>incsearch_config({'is_stay': 1}))

Bonus fuzzy-search with EasyMotion

• haya14busa/incsearch.vim
• haya14busa/incsearch-fuzzy.vim

function! s:config_easyfuzzymotion(...) abort
  return extend(copy({
  \   'converters': [incsearch#config#fuzzyword#converter()],
  \   'modules': [incsearch#config#easymotion#module({'overwin': 1})],
  \   'keymap': {"\<CR>": '<Over>(easymotion)'},
  \   'is_expr': 0,
  \   'is_stay': 1
  \ }), get(a:, 1, {}))
endfunction

noremap <silent><expr> <Space>/ incsearch#go(<SID>config_easyfuzzymotion())