Use wp_remote_get instead of curl

wp_remote_get.diff

Index: github_gist_wordpress_plugin.php
===================================================================
--- github_gist_wordpress_plugin.php	(revision 517091)
+++ github_gist_wordpress_plugin.php	(working copy)
@@ -46,13 +46,12 @@
 }
 
 function get_content_from_url($url) {
-	$ch = curl_init();
-	curl_setopt($ch,CURLOPT_URL,$url);
-	curl_setopt($ch,CURLOPT_RETURNTRANSFER,1); 
-	curl_setopt($ch,CURLOPT_CONNECTTIMEOUT,1);
-	$content = curl_exec($ch);
-	curl_close($ch);
-	return $content;
+	$response = wp_remote_get($url);
+	if( is_wp_error( $response ) ) {
+		return '';
+	} else {
+		return $response['body'];
+	}
 }
 
 function gist_raw($id, $file) {