Medium size release containing bug fixes, enhancements

slight binary-incompatibility with 0.7.0

That change was actually introduced a few weeks back. If you
require binary-compatibility, see pre-C++11 branch and 0.7.0 tag.

Moving forward, we plan to support only C++11, but old compilers
should still work at this point.

Imported from SVN at revision 283.

    % cat authors.txt
    Zark = Zark <[email protected]>
    christopherdunn = Christopher Dunn <[email protected]>
    aaronjacobs = Aaron Jacobs <[email protected]>
    blep = Baptiste Lepilleur <[email protected]>
    malays = Malay Shah <[email protected]>

    % mkdir rsync
    % rsync -v -a --progress --delete svn.code.sf.net::p/jsoncpp/code/ rsync/
    % mkdir git
    % cd git
    % svn2git --authors ../authors.txt --tags tags/jsoncpp --trunk trunk/jsoncpp --branches branches/jsoncpp file:///Users/jacobsa/tmp/rsync