[mod_kazoo] some fixes & enhancements

[mod_kazoo] some fixes & enhancements

* [mod_kazoo] address scan-build warnings

* [mod_kazoo] don't use switch_core_session_force_locate

* [mod_kazoo] add loglevel support per event

* [mod_kazoo] add option to serialize as array

* [mod_kazoo] handle verbose fields

* [mod_kazoo] handle _body header field

* [mod_kazoo] ensure raw json is valid

* [mod_kazoo] encode json number

encodes double as unsigned long long if possible

note: file was formatted

* [mod_kazoo] fix tweaks configuration

* [mod_kazoo] move headers to proper place

* to use Target-Node in filtering
  we need to add and then remove it
  since the next node uses the same event
  to build the message

* [mod_kazoo] handle cleanup in new_event_stream

* [mod_kazoo] do not decode _json_ headers

* [mod_kazoo] add kz_cdr event

* fires the event in report state
* adds json serialized parts
  that can be included
  in event message
* moves history funcs from
  kazoo_commands to kazoo_cdr

* [mod_kazoo] format default configuration

* [mod_kazoo] validate bracket creation

* [mod_kazoo] use single fd for kz_http_put

* [mod_kazoo] add uuid to kz_expand