Fix up a few small warnings.

src/HttpRouter.c

@@ -195,7 +195,7 @@ HttpRouterRoute(HttpRouter * router, char *path, void *args, void **ret)
     RouteNode *node;
     char *pathPart;
     char *tmp;
-    HttpRouteFunc *exec;
+    HttpRouteFunc *exec = NULL;
     Array *matches;
     size_t i;
     int retval;

src/Main.c

@@ -627,7 +627,10 @@ finish:
          * Change back into starting directory so initial chdir()
          * call works.
          */
-        chdir(startDir);
+        if (chdir(startDir) != 0)
+        {
+            /* TODO: Seems problematic, what do we do? */
+        }
         goto start;
     }
 

src/Routes/RouteProcControl.c

@@ -75,6 +75,7 @@ ROUTE_IMPL(RouteProcControl, path, argp)
                 response = MatrixErrorCreate(M_UNRECOGNIZED);
                 goto finish;
             }
+            break;
         case HTTP_GET:
             if (strcmp(op, "stats") == 0)
             {