Contrtib Themes to be deleted from the Site Building Guide before migration

@quietone, @drumm, I have created this issue to help with the migration of the Site Building Guide. Yesterday I started going through the themes, identifying the status of each.

I recommend the following conditions for considering theme documents to be deleted:
- Remove themes with only Drupal 6 releases
- Remove themes which are unsupported
- Remove themes with are deprecated

I can also identify themes that only have Drupal 7 releases.

I'll create a list of themes to be deleted and update this ticket in the next two weeks.

@drumm, I have updated this ticket with the list of modules to be deleted as either unsupported or D6 releases only.

I've also added a list of module, and the release versions.

Can you work with these lists? I'll start on Modules tomorrow.

Added bs_base documentation to the list of pages to be deleted.

Added request to delete Black theme documentation,

Adding Casper theme to list of modules without D7 releases.

These deletes are done, thanks!

Automatically closed - issue fixed for 2 weeks with no activity.