Note explaining why unlock() does not return a Promise.
Clearly define enum values and make them clickable.
Fixes issue #24.
Merge pull request #37 from mounirlamouri/should_would

Fixes issue #24.
Merge pull request #36 from mounirlamouri/enum_definitions

Clearly define enum values and make them clickable.
Merge pull request #35 from mounirlamouri/unlock_note

Note explaining why unlock() does not return a Promise.