* fully optional
* requires additional options set in the database

Whenever the GRANT ALL failed, it used to display "Database creation
failed" which is incorrect. It's only the privleges setting that failed.

This moves the privilege setting message to DEBUG and makes it more
precise.

Extended the database setup to store the database port.
Changed the PostgreSQL connection error message for clarification.

Signed-off-by: Stefan Weil <sw@weilnetz.de>

Probably nice for the people that contributed to 9.0 to see themselves in the AUTHORS file :)

This commit consists of patches automatically generated for this project on https://scrutinizer-ci.com

- less static calls
- use params on sql queries
- handle sql exception on database and user creation gracefully

This reverts commit 6a1a4880.

if dbuser exists try a different one, owncloud/core#108

changed outdated comment

corrected length calculation

changed indentation for else clauses

Set default collation of mysql connection to utf8_bin
Set utf_bin as default collation for new tables

Fix issue #6269

Conflicts:
	lib/private/vcategories.php

 - Use camelCase

 - Add some phpdoc

 - Fix some indents

 - Use some more spacing