Update README.md

Correct group id and package name

Use correct group id and package name to reflect multi-module nature of maven setup to only reference the actual client API implementation and not pull in example or parent (empty) project as dependencies.

Correct group id and package name

Use correct group id and package name to reflect multi-module nature of maven setup to only reference the actual client API implementation and not pull in example or parent (empty) project as dependencies.

Fix JavaDoc error

Merge branch 'master' of https://github.com/marvin-we/steem-java-api-…

…wrapper

Raise version to 0.4.2

Fix JavaDoc error

Fix JavaDoc error

Raise version to 0.4.0

Fix several JavaDoc issues