Squashed commit of the following:

    * origin/develop:
      Updated readme contents and version number.
      Added Serbian language translations.
      Added French translations from tx.
      Added .tx folder to the subversion blacklist.
      Added transifex client files to dev tree.
      Added correctly named and formatted translation file for Spanish (es_ES).

git-svn-id: https://plugins.svn.wordpress.org/instant-breadcrumbs/trunk@962123 b8457f37-d9ea-0310-8a92-e5e31aec5664