initial attempt to create case-by-case fixtures to address #193
a few real examples
move fixtures to appropriate directories and change installer
update specs to use new smaller fixture base
Merge pull request #228 from geoblacklight/case-by-case-fixtures-modify

Case by case fixtures modify
Merge pull request #201 from geoblacklight/case-by-case-fixtures

initial attempt to create case-by-case fixtures to address #193