Use AtomicIntegerArray and StandardCharsets

Fix some build checks in sources

* Trailing whitespace
* Wrong identation
* Long lines
* Line endings

Fix issue #740

Fix issue #736: Copyright years in sources

Fix #744: TestFile failure on Java 9 and Java 10

Fix suggested by Noel Grandin

More cleanups in LocalDateTimeUtils and other minor changes

Change REGEXP_REPLACE mode for MariaDB and PostgreSQL

Issue#646 NPE in CREATE VIEW WITH RECURSIVE & NON_RECURSIVE CTE

Copy javadoc to *BackwardsCompat to fix building of documentation

Add support of java.time.Instant V2

Instant values are mapped to TIMESTAMP data type.

Remove JPA/ORM configuration txt files as they're already integrated