Releases for Barcode

Fix some bugs.

Please see #1243518: Barcode Module 2.0 roadmap for release

Drupal 7 initial release. Basic testing done. Title setting is not present in this release.

Development version of 6.x--2 branch.

Includes:
#480064 by phayes, arhak and shadowx: Use url() in theme function to all barcode module to work on drupal sites installed in subdirectories
#588266: split barcode into two modules. One cck module and one API module
#602498: implementation of hook_perm
#595996 by Pasqualle: A variety improvements submitted as an incomplete rewrite of the barcode module. This development version is based on the code in this issue.

Code now passes coder module rules.

1. Added UPC-A length validation
2. Fixed trailing space bug
3. Changed the ordering of the Title and Barcode display