Changes

Implementing ZonedDateTime native support on Oracle
 (commit: 4003959)

Implementing ZonedDateTime native support on HSQLDB.
Required to bump HSQLDB dependency to 2.4.0 minimum because that's the first version which supports TIMEZONE storage. Meanwhile we bumped to 2.7.4 because 2.4.0 is quite old and, overall, 2.7.x fixes the "synchronized cancel()" method problem.
 (commit: da62643)

Fixing sequence name not escaped at creation and deletion time if it's a keyword
 (commit: 72a3c5a)

Fixing HSQLDB Dialect to support 2.7, no more 2.0
 (commit: 87bff74)

Trying an approach to simplify Dialect configuration for end-user : introducing the new classes DialectOptions and DialectBuilder.
 (commit: adcee05)

Code cleanup
 (commit: 5a4155b)

Propagating renaming of Modifiable* classes to Mutable* classes
 (commit: 3b8a5f1)

Implementing on HSQLDB the approach to simplify Dialect configuration for end-user : HSQLDBDialect is removed and replaced by HSQLDBDialectBuilder. Default behaviors are provided by DatabaseVendorSettings and a dedicated one is created by vendor : HSQLDBDatabaseSettings. Required some changes on DatabaseVendorSettings class, and then some adaptions to other vendors are made but temporary. Now on, changing some options is available through the Builder, combined by DialectOptions.
Raised some bugs on PersistenceContext.insert(..) and PersistenceContext.update(..) which were not escaping keywords. It required a bunch of changes in particular on InsertCommandBuilder and some generics enhancements (lack of knowledge at implementation time)
 (commit: 40e9940)