Addressing warning message by adding :original for add_tax_cloud_admin_menu

Addressing issue:

No :original defined for 'add_tax_cloud_admin_menu_link', you should change its definition to include:
 :original => '8e7dd42cfde1795276b04835e0c2b9948a7cadaf'
Merge pull request #35 from brchristian/patch-1

Addressing warning msg by adding :original for add_tax_cloud_admin_menu---merged after clarification