(MAINT) Tidy up 'simple' API
(MAINT) Tidy up 'simple' API

This commit is a follow-up to the initial 'simple' API commit, which
removes an errant `dissoc`, fixes a typo, and adds developer TODO
comments for adding an `options` parameter.

steveax/jvm-ssl-utils,camlow325/jvm-ssl-utils,puppetlabs/jvm-ssl-utils,steveax/jvm-ssl-utils,puppetlabs/jvm-ssl-utils,camlow325/jvm-ssl-utils