test: put more stuff in helper method for neater tests
test: add more user id tests
modifyKey: error out on nonexisting new primary user id
get rid of some inspection warnings
test: get rid of some SaveKeyringParcel boilerplate
SaveKeyringParcel: follow attribute m prefix coding guideline
(whoops)
test: onlyX vars are lists now, use them as such
test: add SubkeyChange tests
modifyKey: make SubkeyChange operations work
test: stronger SubkeyCreate tests
modifyKey: proper expiry check during SubkeyAdd
tests: stronger subkey revocation test including re-certification