Add edit_base* with admin/frontend folder file listing

Before it only listed files in current directory. Because of the hard
split select from both.
Add hostname/folder input (optional) to prefix files outside the same
folder.

Note: If no hostname/folder is set and two files in admin and frontend
have the same name they will be both highlighted as the point to the
same place.

4dev/database/update/edit_tables_missing_columns.sql

@@ -0,0 +1,14 @@
+-- update missing edit_* table data
+
+ALTER TABLE edit_generic ADD cuid VARCHAR;
+
+ALTER TABLE edit_access ADD enabled SMALLINT DEFAULT 0;
+ALTER TABLE edit_access ADD protected SMALLINT DEFAULT 0;
+
+ALTER TABLE edit_group ADD uid VARCHAR;
+ALTER TABLE edit_group ADD deleted SMALLINT DEFAULT 0;
+
+ALTER TABLE temp_files ADD folder varchar;
+ALTER TABLE edit_page ADD hostname varchar;
+
+ALTER TABLE edit_user ADD deleted SMALLINT DEFAULT 0;