Log Message:
Update w3m to 0.5.2.

w3m 0.5.2 - 2007-05-31

* security fix
 - fix format string vulnerability.
* new features
 - support gtk2 with w3m-img.
 - new option for LiveHTTPHeaders-like logs.
 - new option to fontify <del>, <s>, <ins>, and so on.
* other bug fixes
 - avoid errors in "configure" and "make".
 - '\n' handling in attributes' values of HTML tags.