ElasticSearch:  Stop looking for 'ok', better index creation, others

- Many functions were still looking for 'ok' which is no longer included after 1.0.
Changed to look for a 200 response code.

- Added getRecoveryStagesForIndex() and getRecoveryRawForIndex() which call the /index/_recovery
API.

- Changed index creation to query the recovery status and to wait until the index was finished creating
before returning.  Before, it was blindly waiting one second.

- Added skipHandleResponse option to request().