[HamWAN PSDR] Metal 5SHPn firmware 6.12 is current

[Dean Gibson AE7Q]

Changelog.  Note the first item.  I've installed it.  With permission, 
I'll change the link on the HamWAM client config page.

What's new in 6.12 (2014-Apr-14 09:27):

*) l2tp - fixed "no buffer space available" problem;
*) ipsec - support IPv4 over IPv6 and vice versa;
*) pppoe - report correctly number of active links;
*) updated timezone information;
*) many fixes for CRS managed switch functionality -
    particularly improved VLAN support, port isolation, defaults;
*) added trunk support for CRS switches;
*) added policing support for CRS switches;
*) www - added support for HTTP byte ranges;
*) lte - provide signal strength using snmp and make 'info once' work in console;

What's new in 6.11 (2014-Mar-20 09:16):

*) ipsec - fix aes-cbc hardware acceleration on CCR with key sizes 192 and 256;
*) wireless - add auto frequency feature;
*) ovpn - fixed TLS renegotiation;
*) ovpn - make bridge mode work with big packets (do not leave extraneous padding);
*) ovpn - fixed require-client-certifcate;
*) ppp - revert RADIUS NAS-Port behaviour, report tunnel interface id;
*) ppp - mppe encryption together with mrru locked the router;
*) dhcp - added support for DHCP option 138 - list of CAPWAP IPv4 servers;
*) quickset - added Guest Network setup to Home AP mode;
*) console - no longer required to supply value of '/routing bgp instance vrf'
     property 'instance' for 'add' command;
*) ethernet - added option to enable rx/tx flow control
     (will be disabled by default);
*) ethernet - added ability to specify advertised modes for copper ports;
*) fixed 100% cpu usage on CCRs;
*) ssl - not finding CRL in local store for any certificate in trust chain will cause connection to fail;
*) lte - support for Huawei ME609 and ME909u-521;