[graphic-forms-devel] fixes for the config and loading process

Mea culpa. I have not been adequately testing the configuration and loading process documented in the top-level README, and have found to my chagrin that it was badly broken. I will stop using my private build.lisp to help make sure this doesn't happen in the future.

Please find attached replacements for files in the Graphic-Forms source distribution. The procedure documented in the README is still valid. My apologies to anyone that has tried to experiment with GF and been stymied by these mistakes.

Thanks to Mark Haniford for his problem reports.