cf 7.x-1.6

The 7.x-1.5 release was not properly generated by drupal.org's project release system.
Instead, the 7.x-1.5 release was somehow a development snapshot of the 7.x-2.x branch.

It appears that the master git repository is being treated as the 7.x-1.x branch.
I took the quick and easy solution and moved all of the 7.x-1.x changes into the master branch.

There are no functional changes between 7.x-1.5 and 7.x-1.6 other than having the correct files and the following additional stub submodules:
- cf_db_options
- cf_settings
- cf_1x_compatibility

The only way I can find out if this change works is by making a release, this release.
If this does not work for you report the problem asap and continue to use the 7.x-1.4 version of the cf module.