BIND 10 trac3112, created. d8a6c3dd5baed22bb4b1b8729ffc9ddcece48924 [3112] Don't use boost::optional in libdns++

[BIND 10 source code commits]

The branch, trac3112 has been created
        at  d8a6c3dd5baed22bb4b1b8729ffc9ddcece48924 (commit)

- Log -----------------------------------------------------------------
commit d8a6c3dd5baed22bb4b1b8729ffc9ddcece48924
Author: Mukund Sivaraman <muks at isc.org>
Date:   Thu Sep 12 00:51:59 2013 +0530

    [3112] Don't use boost::optional in libdns++
    
    This has the side-effect of requiring additional copies of RRTTL
    to be constructed and is less optimal. See the ticket on why
    boost::optional is problematic.

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