controved.php

function jh_plugin_init() {

	if ( function_exists( 'w4tc_cdn' ) )
		add_action( 'load-post-new.php', '_jh_add_parse_query_action' );
}
add_action( 'init', 'jh_plugin_init' );

function _jh_add_parse_query_action() {
	add_action( 'parse_query', '_jh_add_query_var_to_parse_query' );
}

function _jh_add_query_var_to_parse_query( $wp ) {
	$wp->query_vars['post_type'] = 'page';
}

Typo in the filename (controved.php) :-)