Fix LOAD_START

The URI is not yet available at this time. Both WebKit1 and WebKit2 send
this signal after data structures have been allocated for a load, but
before anything related to it has actually been done.

README.md

@@ -1293,8 +1293,9 @@ uzbl itself and will be emitted based on what is happening within uzbl-core.
 * `NAVIGATION_STARTING <URI> <SRCFRAME> <DESTFRAME> <TYPE>`
   - Sent when a main navigation is requested for a frame. See `scheme_handler`
     for the types available.
-* `LOAD_START <URI>`
-  - Sent when a main page navigation is started.
+* `LOAD_START`
+  - Sent when a main page navigation is started. This is before WebKit even
+    looks at the URI, so the name, protocol, or port may still be invalid.
 * `LOAD_REDIRECTED <URI>`
   - Sent when the main page navigation has been redirected to a new URI.
 * `LOAD_COMMIT <URI>`

src/gui.c

@@ -1728,7 +1728,8 @@ send_load_status (WebKitLoadStatus status, const gchar *uri)
 #else
     case WEBKIT_LOAD_PROVISIONAL:
 #endif
-        event = LOAD_START;
+        uzbl_events_send (LOAD_START, NULL,
+            NULL);
         break;
 #ifdef USE_WEBKIT2
     case WEBKIT_LOAD_REDIRECTED: