Index: wp-admin/includes/class-wp-terms-list-table.php
===================================================================
--- wp-admin/includes/class-wp-terms-list-table.php	(revision 26253)
+++ wp-admin/includes/class-wp-terms-list-table.php	(working copy)
@@ -46,10 +46,36 @@
 		$tags_per_page = $this->get_items_per_page( 'edit_' . $this->screen->taxonomy . '_per_page' );
 
 		if ( 'post_tag' == $this->screen->taxonomy ) {
+
+			/** 
+			 * Filter to modify the number of tags per page on 'post_tag' taxonomy.
+			 * 
+			 * @since 2.8.0
+			 *
+			 * @param	int	$tags_per_page	Number of tags per page
+			 */
 			$tags_per_page = apply_filters( 'edit_tags_per_page', $tags_per_page );
-			$tags_per_page = apply_filters( 'tagsperpage', $tags_per_page ); // Old filter
+
+			/** 
+			 * Filter to modify the number of tags per page on 'post_tag' taxonomy.
+			 * 
+			 * @since 2.7.0
+			 * @deprecated 2.8.0
+			 *
+			 * @param	int	$tags_per_page	Number of tags per page
+			 */
+			$tags_per_page = apply_filters( 'tagsperpage', $tags_per_page );
 		} elseif ( 'category' == $this->screen->taxonomy ) {
-			$tags_per_page = apply_filters( 'edit_categories_per_page', $tags_per_page ); // Old filter
+
+			/** 
+			 * Filter to modify the number of categories per page on 'category' taxonomy.
+			 * 
+			 * @since 2.7.0
+			 * @deprecated 2.8.0
+			 *
+			 * @param	int	$tags_per_page	Number of categories per page
+			 */
+			$tags_per_page = apply_filters( 'edit_categories_per_page', $tags_per_page );
 		}
 
 		$search = !empty( $_REQUEST['s'] ) ? trim( wp_unslash( $_REQUEST['s'] ) ) : '';
@@ -246,6 +272,15 @@
 		$default_term = get_option( 'default_' . $taxonomy );
 
 		$pad = str_repeat( '— ', max( 0, $this->level ) );
+
+		/** 
+		 * Filter the name of the term.
+		 * 
+		 * @since 2.5.0
+		 *
+		 * @param	string	$pad.' '.$tag->name	Name of the term padded
+		 * @param	object	$tag	Term object
+		 */
 		$name = apply_filters( 'term_name', $pad . ' ' . $tag->name, $tag );
 		$qe_data = get_term( $tag->term_id, $taxonomy, OBJECT, 'edit' );
 		$edit_link = esc_url( get_edit_term_link( $tag->term_id, $taxonomy, $this->screen->post_type ) );
@@ -262,12 +297,37 @@
 		if ( $tax->public )
 			$actions['view'] = '<a href="' . get_term_link( $tag ) . '">' . __( 'View' ) . '</a>';
 
+		/** 
+		 * Filter for the quick actions that appear when you mouseover a term’s row.
+		 * 
+		 * @since 2.8.0
+		 *
+		 * @param	array	$actions	Associative array of "quick actions"
+		 * @param	object	$tag	Term object
+		 */
 		$actions = apply_filters( 'tag_row_actions', $actions, $tag );
+
+		/** 
+		 * Filter the name of the term.
+		 * 
+		 * @since 3.0.0
+		 *
+		 * @param	array	$actions	Associative array of “quick actions” that appear when you mouseover a term’s row
+		 * @param	object	$tag	Term object
+		 */
 		$actions = apply_filters( "{$taxonomy}_row_actions", $actions, $tag );
 
 		$out .= $this->row_actions( $actions );
 		$out .= '<div class="hidden" id="inline_' . $qe_data->term_id . '">';
 		$out .= '<div class="name">' . $qe_data->name . '</div>';
+
+		/** 
+		 * Filter for term slug in the slug form field.
+		 * 
+		 * @since 2.6.0
+		 *
+		 * @param	string	$qe_data->slug	Term slug
+		 */
 		$out .= '<div class="slug">' . apply_filters( 'editable_slug', $qe_data->slug ) . '</div>';
 		$out .= '<div class="parent">' . $qe_data->parent . '</div></div>';
 
@@ -279,6 +339,7 @@
 	}
 
 	function column_slug( $tag ) {
+		/** This filter is documented in wp-admin/includes/class-wp-terms-list-table.php */
 		return apply_filters( 'editable_slug', $tag->slug );
 	}
 
@@ -314,6 +375,14 @@
 	}
 
 	function column_default( $tag, $column_name ) {
+		/** 
+		 * Filter for term slug in the slug form field.
+		 * 
+		 * @since 3.5.0
+		 *
+		 * @param	string	$column_name	Name of the column
+		 * @param	int	$tag->term_id	Term ID
+		 */
 		return apply_filters( "manage_{$this->screen->taxonomy}_custom_column", '', $column_name, $tag->term_id );
 	}
 
@@ -356,6 +425,15 @@
 			if ( isset( $core_columns[$column_name] ) )
 				continue;
 
+			/** 
+			 * Fires one time for each custom column.
+			 *
+			 * @since 2.7.0
+			 *
+			 * @param	string	$column_name	The name of the column to edit.
+			 * @param	string	'edit-tags'	Edit Tags Administration Screen.
+			 * @param	string	$this->screen->taxonomy	The name of the taxonomy
+			 */
 			do_action( 'quick_edit_custom_box', $column_name, 'edit-tags', $this->screen->taxonomy );
 		}