Revert "Standardize terminology in Splunk_Namespace on 'user' as opposed to 'owner'."
Revert "Standardize terminology in Splunk_Namespace on 'user' as opposed to 'owner'."

This reverts commit 7ded04b100d28daf6613afd992e9ee32b5020e10.

shakeelmohamed/splunk-sdk-php,splunk/splunk-sdk-php,unikent/splunk-sdk-php,shakeelmohamed/splunk-sdk-php,shakeelmohamed/splunk-sdk-php,unikent/splunk-sdk-php,splunk/splunk-sdk-php,splunk/splunk-sdk-php,unikent/splunk-sdk-php