Database migration in Base

[Tamas Bunth]

Hi,

I recently finished the majority of HSQLDB database migration inside Base
documents. You can test it with opening an old .odb file which contains embedded
HSQL database.

As part of this project I also:

- removed "experimental" marker from Firebird.

- removed the ability to create embedded HSQLDB documents from wizard. Now
  embedded Firebird is the default choice.

- Erased the hsqldb code entirely:
    https://gerrit.libreoffice.org/#/c/52611/

I would like to ask you to CC me to any upcoming problems related to the
migration or dbaccess. I'll try to do my best to make Base a reliable and useful
part of LibreOffice.

tldr:
https://wastack.wordpress.com/2018/04/07/final-steps-of-libreoffice-database-migration/

Thank you,
Tamás Bunth