v3.1.1

Enhancements

• Add useful constructors to Key with a single value (#265)
• add scalar-schema dockerfile (#266)
• Add integration test for JDBC SqlServer to the CI configuration (#269)
• Introduce factory classes to instantiate storage and transaction (#276)

Improvements

• Refactor build.gradle (#261)
• Introduce Spotbugs plugin (#262)
• Introduce Error Prone plugin (#263)
• Use the new utility methods/constructors (#268)
• Rename the integrationTest source set to integrationTestAll (#272)
• Add publishToMavenLocal for archiving and uploading to maven central (#273)
• Reduce the Cassandra heap size for the multi-storage integration test (#275)

Bug fixes

• Use column name alias for projection expressions in the DynamoDB adapter (#264)