Update databases/couchdb to 1.3.0.  Changes since 1.2.1:

Version 1.3.0
-------------

HTTP Interface:

 * No longer rewrites the X-CouchDB-Requested-Path during recursive calls to the
   rewriter.
 * Limit recursion depth in the URL rewriter. Defaults to a maximum of 100
   invocations but is configurable.
 * Fix _session for IE7.
 * Added Server-Sent Events protocol to db changes API. See
   http://www.w3.org/TR/eventsource/ for details.
 * Make password hashing synchronous when using the /_config/admins API.
 * Include user name in show/list ETags.
 * Experimental support for Cross-Origin Resource Sharing (CORS). See
   http://www.w3.org/TR/cors/ for details.

Replicator:

 * The replicator will use a new server-wide UUID in checkpoint IDs to
   improve the chances of an efficient resume.

Storage System:

 * Fixed unnecessary conflict when deleting and creating a
   document in the same batch.

View Server:

 * Additional response headers may be varied prior to send().
 * GetRow() is now side-effect free.

Futon:

 * Disabled the link to the Futon test suite. These tests were causing problems
   when run from a browser, and are now available via the CLI instead.
 * Added view request duration to Futon.
 * Disable buttons for actions that the user doesn't have permissions to.

Security:

 * Passwords are now hashed using the PBKDF2 algorithm with a configurable work
   factor.

Test Suite:

 * Moved the JS test suite to the CLI.
 * Improved tracebacks printed by the JS CLI tests.
 * Improved the reliability of a number of tests.

UUID Algorithms:

 * Added the utc_id algorithm.

URL Rewriter & Vhosts:

 * Database name is encoded during rewriting (allowing embedded /'s, etc).
 * Reset rewrite counter on new request, avoiding unnecessary request failures
   due to bogus rewrite limit reports.

Build System:

 * C/C++ compiler detection has been improved.
 * Autoconf v2.63 is now required if building from Git checkout directly. See
   DEVELOPERS file for more details.
 * Fixed issue in couchdb script where stopped status returns before process
   exits.

Version 1.2.2
-------------

HTTP Interface:

 * Reset rewrite counter on new request, avoiding unnecessary request failures
   due to bogus rewrite limit reports.

Build System:

 * Fixed issue in couchdb script where stopped status returns before process
   exits.