Fix __drush_ps1 so that prompt is cleared after unuse.
Remove duplicate test.
Add config link for modules in output of pm-info command
Merge pull request #42 from greg-1-anderson/drush-ps1

Fix __drush_ps1 so that prompt is cleared after unuse.
Remove redundant site-reset command. Use site-set without an argument.
Fix #40. Added commented out shell alias as discussed. I also fixed a nasty shell alias bug which this revealed. It had been previously reported at https://drupal.org/node/1967346. I used str_getcsv() to fix it and that function is not available in php 5.2 so backport to 5.x needs work.
Show error for usage-show and usage-send commands if usage file is not found
Add a function doc comment, return drush_set_error
Set errors in usage-show and usage-send commands
Document how to run Unish with an alternate version of Drupal using just the CLI.
Fix bad paste.