2.0.20 beta available

[NIIBE Yutaka]

I found a simple error in the release note.

On 2013-04-24 at 21:40 +0200, Werner Koch wrote:
>  * Decryption using smartcards keys > 3072 bit does not work.

It _does_ work now by the commit: ab4ea45f54006eba55db11263431c4c0c4f557dc

	Werner Koch <wk at gnupg.org>
	Tue, 6 Nov 2012 13:39:22 +0000 (14:39 +0100)
	Allow decryption with card keys > 3072 bit

Reviewing the diff again, I found an indentation mistake in
agent_scd_pkdecrypt.  The 'if' statement inside the 'for' has wrong
indentation.
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