Remove gnupg_home from where it still was.
Fix _init_config params and source for random symkey.
Add checks, exceptions and warnings for directory creation.
Fix file left open in _has_symkey().
Cleanup _gen_symkey error raising.
Fix file left open in _store_symkey.
Switch string literals to string constants.
Refactor name and fix doc of function that stores secrets in shred recovery database.
Use XDG for determining config prefix.
Change string constants into string literals for couch backend.
Fix shared db auth and add tests.