www/wt: unbreak with boost 1.63

In file included from wt-3.3.6/src/Wt/Render/CssParser.C:26:
[...]
/usr/local/include/boost/phoenix/function/detail/cpp03/preprocessed/function_operator_10.hpp:91:105: error: cannot initialize a parameter of type 'char *' with an lvalue of type 'char const[17]'
            return detail::expression::function_eval<F, A0 , A1 , A2 , A3 , A4>::make(f, a0 , a1 , a2 , a3 , a4);
                                                                                                        ^~

PR:		215599
Approved by:	Mohammad S. Babaei (maintainer)

www/wt/Makefile

@@ -3,7 +3,7 @@
 
 PORTNAME=	wt
 PORTVERSION=	3.3.6
-PORTREVISION=	2
+PORTREVISION=	3
 CATEGORIES=	www
 
 MAINTAINER=	info@babaei.net

www/wt/files/patch-src_Wt_Render_CssParser.C

+https://github.com/emweb/wt/pull/102
+
+--- src/Wt/Render/CssParser.C.orig	2016-07-13 12:27:26 UTC
++++ src/Wt/Render/CssParser.C
+@@ -372,7 +372,7 @@ CssGrammer<Iterator>::CssGrammer()
+   on_error<qi::fail>
+   (
+     rulesetArray_,
+-    error_report(qi::_2, qi::_3, qi::_4, "styleSheetText()", fs_error_tag())
++    error_report(qi::_2, qi::_3, qi::_4, phoenix::val("styleSheetText()"), fs_error_tag())
+   );
+ 
+ }