+/**
+ * This file is the entry point for all API queries. It begins by checking
+ * whether the API is enabled on this wiki; if not, it informs the user that
+ * s/he should set $wgEnableAPI to true and exits. Otherwise, it constructs
+ * a new ApiMain using the parameter passed to it as an argument in the URL
+ * ('?action=') and with write-enabled set to the value of $wgEnableWriteAPI
+ * as specified in LocalSettings.php. It then invokes "execute()" on the
+ * ApiMain object instance, which produces output in the format sepecified
+ * in the URL.
+ */
+