Skytools Python modules

 This is the low-level utility module split out from the old Skytools
 meta-package. It contains various utilities for writing PostgreSQL database
 scripts.
 .
 Features:
  * Support for background scripts - daemonizing - logging - config parsing
  * Database tools - tuned connection - DB structure examining - SQL parsing -
    COPY I/O
  * Time utilities - ISO timestamp parsing - datetime to timestamp
  * Text utilities - natural sort - fast urlencode I/O