[cpanfile] depend on Elastic::Model => 0.28

 * Elastic::Model v0.28 fixes several important bugs:

   * It stops using the deprecated Class::MOP::class_load, removing the
     need to have a locally patched Elastic::Model::TypeMap::Base

   * It depends on the new Search::Elasticsearch family of modules, a
     renaming of the Elastic[Ss]earch modules that were causing issues
     w/ case-insensitive filesystems.  See:
     https://github.com/elasticsearch/elasticsearch-perl/issues/20

 * As a side-effect, this should make Judoon carton-able now (I think, I hope)
[search] reindex.pl: drop 5.14 dep + run everywhere
Merge branch 'elastic_updates'