Pulls the latest hunspell to merge r65351 "Add a MD5 checksum to the BDIC header".

TBR=estade,jshin
BUG=61206
TEST=<http://codereview.chromium.org/4477002>
Review URL: http://codereview.chromium.org/4664001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@65624 0039d316-1c4b-4281-b951-d872f2087c98