* [AP,AP_DIR,FIX] Removing directories before/after AP starts/finishes now works.
* [CKAN_FILE_SIZE,EXT] Added plain text version of file size statistics tables (using the new DCG_TABLE).
* [DCG_GENERIC,FIX] dcg_with_outout_to/2 is now deterministic.
* [DCG_TABLE,NEW] New module for generating plain text tables. Follows HTML_TABLE is functionality and design.