Test: VimwikiTableMoveColumnLeft and some friends

Test: VimwikiTableMoveColumnLeft (Note:cannot test <M-Left> map : not triggered)
Test: issue #949 <Enter> create link bug with Chinese characters
Test: VimwikiGoto with ,wn
Test: Table left align
Prettify: modeline of contributing

test/command_goto.vader

@@ -32,6 +32,10 @@ Do (VimwikiGoto <CR> buzz_bo + Completion(input()) && Assert):
   buzz_bo\<C-l>\<CR>
   :AssertEqual $HOME . '/testmarkdown/buzz_bozz.md', expand('%')\<CR>
 
+Do (,wn buzz_bo + Completion(input()) && Assert):
+  ,wn
+  buzz_bo\<C-l>\<CR>
+  :AssertEqual $HOME . '/testmarkdown/buzz_bozz.md', expand('%')\<CR>
 
 Execute (:VimwikiGoto + Completion (API)):
   VimwikiIndex 2