Fix hot spot positioning on page with right-to-left text (fixes #903).

src/css/pannellum.css

@@ -16,6 +16,7 @@
     outline: 0;
     line-height: 1.4;
     contain: content;
+    direction: ltr;
 }
 .pnlm-container, .pnlm-load-button {
     font-family: Helvetica, "Nimbus Sans L", "Liberation Sans", Arial, sans-serif;