docs($exceptionHandler): add a note about cases when exceptions are not delegated to the

$exceptionHandler

Add a note in $exceptionHandler's documentation about cases when exceptions are not delegated to
the $exceptionHandler, because they are executed outside of the Angular context. Most notable such
cases being the DOM event listeners registered using jqLite's/jQuery's on/bind methods.

Closes #7909
Closes #9318

src/ng/exceptionHandler.js

@@ -27,6 +27,14 @@
  * This example will override the normal action of `$exceptionHandler`, to make angular
  * exceptions fail hard when they happen, instead of just logging to the console.
  *
+ * <hr />
+ * Note, that code executed in event-listeners (even those registered using jqLite's `on`/`bind`
+ * methods) does not delegate exceptions to the {@link ng.$exceptionHandler $exceptionHandler}
+ * (unless executed during a digest).
+ *
+ * If you wish, you can manually delegate exceptions, e.g.
+ * `try { ... } catch(e) { $exceptionHandler(e); }`
+ *
  * @param {Error} exception Exception associated with the error.
  * @param {string=} cause optional information about the context in which
  *       the error was thrown.