Issue #278: cleanup .ini file generation (conservancy/kallithea)

[domruf]

New issue 278: cleanup .ini file generation
https://bitbucket.org/conservancy/kallithea/issues/278/cleanup-ini-file-generation

domruf:

There are currently to ways to generate .ini files: gearbox make-config and generate-ini.py

The goal should be to only have one.

Also, maybe test.ini should be generated on the fly. And development.ini should be removed and generated by the user instead.