stunnel: security bump to version 5.06

Disables SSLv2 & SSLv3 by default to mitigate poodle.
Also add hash file.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/stunnel/stunnel.hash

@@ -0,0 +1,2 @@
+# From http://www.stunnel.org/pipermail/stunnel-announce/2014-October/000084.html
+sha256	098c2b6db0793ea4fa5b6767ce6ef1853e9f6cc2f32133024be55f6a460b1a40	stunnel-5.06.tar.gz

package/stunnel/stunnel.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-STUNNEL_VERSION = 5.03
+STUNNEL_VERSION = 5.06
 STUNNEL_SITE = http://ftp.nluug.nl/pub/networking/stunnel/archive/5.x
 STUNNEL_DEPENDENCIES = openssl
 STUNNEL_CONF_OPTS = --with-ssl=$(STAGING_DIR)/usr --with-threads=fork