erchef 1.2.4

Updated deps:

  chef_wm
    2013-01-28 e14a17f Merge branch 'sf/OC-5808/search-cache'
    2013-01-26 5a784ed Record cache hit/miss status in request log for search
    2013-01-22 d74d463 Add support for optional caching of search query responses
    2013-01-26 5e93c9c Fix dialyzer warnings