drush 5.x-1.4

Changes since DRUPAL-5--1-3:

• #262960 Drush pm cvs not PHP4 compatible
• #236545 by Steven Merrill. 1and1 and drush.php - Fails CLI test wen using cgi php
• #260673 by moshe weitzman. a bit more documentation for drush_pm module.
• #292732 by Sacha Chua. Add eval command. Still needs some work.
• Allow sql dump command to save results to a file. More reliable than unix redirection and less prone to 'funny utf-8 bugs
• #315508 general refactoring to standardize terminology, simplify and improve update logic
• Adding an example for specifying 'r' parameter in drushrc. This is important for people who symlink in their sites directories and want to call drush from outside of the main Drupal directory.
• #239524 webchick - make uri argument optional for 'default' site - backport to Drupal 5
• #340076 - drushrc overrides commandline, should be the opposite. patch by anarcat