ariatemplates/ariatemplates — pull request #1052 by jakub-g (2014-03-24 14:36:01+00:00)
Title: fix #1052 headers were declared as Object in bean

`headers` entry in request beans was declared as Object and not Map, which
meant that JsonValidator would fail when validating any non-empty
`headers` taking the RequestBeans cfg.

For consistency, `headers` are changed to `json:Map` in both related
places in CfgBeans and RequestBeans.