[packages] babeld: upgrade to babeld-1.3.0

[packages] babeld: upgrade to babeld-1.3.0

8 December 2011: babeld-1.3.0

  * Made the route table into a sorted array, and use binary sort for
    searching for routes.  This makes most route operations O(log n), at
    a slight cost in memory usage.
  * Changed the update sending strategy to use buffers large enough for
    a full update.  This makes the duplicate suppression mechanism
    effective in large networks, at a small cost in memory usage.
  * Rate-limit the reaction to wildcard requests.  This avoids an update
    storm at boot in large networks.
  * Fixed a bug that prevented usage of the "default" keyword in
    configuration files.

git-svn-id: svn://svn.openwrt.org/openwrt/packages@29512 3c298f89-4303-0410-b956-a3cf2f4a3e73