Profiler __toString()

[Lick]

It would be nice to have the Profiler be "printable as string", same like the Calendar (which needs tons of work!!).

	/**
	 * Magically convert this object to a string, the rendered profiler.
	 *
	 * @return  string
	 */
	public function __toString()
	{
		return $this->render();
	}

[Geert]

Added in r1761.