* #1627 Replace BCryptService with Maven dependency
- Remove BCryptService in favor of a better BCrypt implementation (Maven dependency)
- Introduce BCryptHasher wrapping the dependency with more suitable methods
- Fix inaccurate details about salt length in docu annotation: for BCrypt it's always 22 chars
- Change phpBB hash to produce 2y hashes instead of 2a
* #1627 Use UTF-8 encoding when (dis)assembling Strings
* #1627 Small test additions
* Add PostgreSQL support
* Fix code issues and create integration tests
* Fix identation
* Test Postgres data source in postgres integration test
* Relocated the postgres driver
* Migrate to GEO IP 2, because support will drop in April
* Change all links of maxmind to https
* Update maxmind database dependency and add javatar to extract
the database from the tar archive
(now only a small difference in jar file size -> ~80KB smaller)
* Verify downloaded archive using MD5 (There are no other checksums available)
* Migrate to Java NIO instead of old java file I/O (Feedback?)
* Internal Optional usage for nullable values (Feedback?)
Minor:
* Schedule a Bukkit async task instead of creating a thread manually
* Validate ip input string
* Extract validation into single method
* Close all resources safely using try-resources
* More https links
* Add documentation
* Set the same last modification as in the tar archive
* Fix tests
* Comment how the legacy API responded to unknown entries
* Document missing function param
* Document our maxmind dependency modifications
* Include time unit into constant
* More logging for downloading the database
* Add missing return if the database cannot be found
* Delete temporarily file after working with it
- JaCoCo 0.8.0 brings some interesting exclusions in code coverage, which means we might be able to drop TestHelper#validateHasOnlyPrivateEmptyConstructor soon
