[RFC] vim-patch:7.4.454

```
Problem:  When using a Visual selection of multiple words and doing
          CTRL-W_] it jumps to the tag matching the word under the
          cursor, not the selected text.  (Patrick hemmer)

Solution: Do not reset Visual mode. (idea by Christian Brabandt)
```

https://code.google.com/p/vim/source/detail?r=0cdff7c268559f8f34eae073a013ece71b62b9e3