README fix [ci skip]
Updated to use ObjectIdentityComparator provided by Parity.
Removed HashMap and HashSet (fixes #62)
Updated to parity alpha release.
Bumped version and updated changelog.
Merge branch 'release/1.0.0-alpha.1' into develop
README [ci skip]
Housekeeping.
Bumped version and updated changelog.
Merge branch 'release/1.0.0' into develop
Bumped license year [ci skip]