Added ability to avoid parsing JSON payload when specifying ignore_post_payload_parse = something. This is useful in case of a HTTP post where you do not want to parse it.
Example:
local dirs = ntop.getDirs()
package.path = dirs.installdir .. "/scripts/lua/modules/?.lua;" .. package.path
local json = require "dkjson"
-- Use ignore_post_payload_parse BEFORE calling 'require "lua_utils"'
ignore_post_payload_parse = 1
require "lua_utils"
sendHTTPContentTypeHeader('application/json')
local info, pos, err = json.decode(_POST["payload"], 1, nil)
