• API browser tool: removed HighLight.js and replaced with jQuery JSONView
• API browser tool: added version check to About Modal
• API client class: added functions locate_ap() and site_leds(), replacing site_ledson()/site_ledsoff() and unset_locate_ap()/set_locate_ap(). The old functions remain usable through aliases.
• API client class: minor code cleanup
• API client class: added basic usage example to README.md
• examples: added list_social_auth_details.php example