Add missing processBatch() method for D6, remove extra blank line.
Fix userDelete() method for D6.
Remove usage of user_role_load_by_name() function in D6 userAddRole().
$role is not an object in D6.
Convert rid array to a keyed array.
Fix userCreate() method for D6.
Merge pull request #44 from albertvolkman/fix-d6-issues

Fix D6 issues
Issue #2313441 by iamEAP: Fixed Add role support for createUsers() when using the DrushDriver.

Signed-off-by: Jonathan Hedstrom <jhedstrom@gmail.com>