Merge pull request #28 from bvzdigital/modman

Modman File
Merge branch 'bugfixes' of ssh://github.com/bvzdigital/PagSeguro-Magento-Transparente into bugfixes

* 'bugfixes' of ssh://github.com/bvzdigital/PagSeguro-Magento-Transparente:
  bug fix for response json null on firefox ajax calls
  bug fix for item description length
  bug fix for firecheckout, onepagecheckout ajax update requests