/symbolset/list
API URL: /symbolset/delete/{name}
/symbolset/delete/{name}
API URL: /symbolset/content/{name}
/symbolset/content/{name}
/symbolset/content/sv-se_ws-sampa-DEMO
API URL: /symbolset/reload/{name}
/symbolset/reload/{name}
/symbolset/reload/sv-se_nst-xsampa-DEMO
/symbolset/reload
/symbolset/upload_page