Some Tweaks to WP Document Repository Plugin

<?php
/**
 * Removes menus from the admin menu that aren't needed on the documents site
 */
add_action( 'admin_menu', 'radl_remove_excess_menus', 99, 0 );
function radl_remove_excess_menus() {
    if( !class_exists( 'RA_Document_Post_Type' ) )
        return;

    $pages_to_remove = array( 'edit.php', 'upload.php', 'link-manager.php', 'edit.php?post_type=page', 'gf_edit_forms' );
    foreach( $pages_to_remove as $p ) {
        remove_menu_page( $p );
    }
}

/**
 * Removes editors' abilities to manage taxonomies on the documents site
 * Removes authors' ability to publish posts on the documents site (they can only save as pending/draft)
 */
add_action( 'init', 'radl_remove_tax_edit_caps', 99, 0 );
function radl_remove_tax_edit_caps() {
    if( !class_exists( 'RA_Document_Post_Type' ) )
        return;

    foreach( array( 'editor' ) as $r ) {
        $role = get_role( $r );
        $role->remove_cap( 'manage_categories' );
        $role->remove_cap( 'manage_terms' );
        $role->remove_cap( 'edit_terms' );
        $role->remove_cap( 'delete_terms' );
    }

    $role = get_role( 'author' );
    $role->remove_cap( 'publish_posts' );
}

/**
 * Removes the Quick Press item from the Document Site dashboard (since we aren't using standard posts in any way)
 */
add_action( 'wp_dashboard_setup', 'radl_remove_quick_press' );
function radl_remove_quick_press() {
    if( !class_exists( 'RA_Document_Post_Type' ) )
        return;

    global $wp_meta_boxes;
    $screen_id = is_network_admin() ? 'dashboard-network' : 'dashboard';
    unset( $wp_meta_boxes[$screen_id]['side']['core']['dashboard_quick_press'] );

    return;
}

/**
 * Removes the "Insert Gravity Form" button from the document editor
 */
function remove_gforms_media_button_from_document_editor() {
    /**
     * Check to see if this is the document site
     * If not, we exit the function
     */
    if( !class_exists( 'RA_Document_Post_Type' ) )
        return;
    /**
     * Check to see if we are editing a post or adding a new post
     * If we are doing neither, exit the function
     */
    if( !isset( $_GET['post_type'] ) && ( !isset( $_GET['action'] ) || 'edit' != $_GET['action'] ) )
        return;
    /**
     * Set a variable with the name of the post_type being edited/added
     */
    $post_type = isset( $_GET['post_type'] ) ? $_GET['post_type'] : get_post_type( $_GET['post'] );
    /**
     * If the post_type is not a document, exit the function
     */
    if( 'umw_document' != $post_type )
        return;
    /**
     * Assuming we passed all the criteria above, remove the GForms button
     */
    remove_action( 'media_buttons_context', array('RGForms', 'add_form_button') );
}
/**
 * Make sure this action is hooked in after the init action is finished.
 * If we hook into the admin_init action, we avoid having to check to make
 *      sure we're in the admin area (since this action only fires in the admin area)
 */
add_action( 'admin_init', 'remove_gforms_media_button_from_document_editor' );
?>