Add webkit language settings

You can now set your prefered website languages in order.
It is also possible to enable spell checking in the same way.

config.def.h

@@ -18,6 +18,11 @@ static char *cookiepolicies = "Aa@"; /* A: accept all; a: accept nothing,
                                       * @: accept no third party */
 static int strictssl       = 0; /* Refuse untrusted SSL connections */
 
+/* Languages */
+static int enablespellchecking         = 0;
+static const char *spellinglanguages[] = { "en_US", NULL };
+static const char *preferedlanguages[] = { NULL };
+
 /* Webkit default features */
 static int enablescrollbars      = 1;
 static int enablecaretbrowsing   = 1;

surf.c

@@ -726,6 +726,13 @@ newview(Client *c, WebKitWebView *rv)
 		webkit_cookie_manager_set_accept_policy(
 		    webkit_web_context_get_cookie_manager(context),
 		    cookiepolicy_get());
+		/* languages */
+		webkit_web_context_set_preferred_languages(context,
+		                                           preferedlanguages);
+		webkit_web_context_set_spell_checking_languages(context,
+		    spellinglanguages);
+		webkit_web_context_set_spell_checking_enabled(context,
+		    enablespellchecking);
 
 		g_signal_connect(G_OBJECT(context), "download-started",
 		                 G_CALLBACK(downloadstarted), c);