/*
 * call-seq:
 *   easy.use_ssl = value                             => fixnum or nil
 * 
 * Ensure libcurl uses SSL for FTP connections. Valid options are Curl::CURL_USESSL_NONE,
 * Curl::CURL_USESSL_TRY, Curl::CURL_USESSL_CONTROL, and Curl::CURL_USESSL_ALL.
 */
static VALUE ruby_curl_easy_use_ssl_set(VALUE self, VALUE use_ssl) {