* Complete PHPStan Level 6
Fix https://github.com/FreshRSS/FreshRSS/issues/4112
And initiate PHPStan Level 7
* PHPStan Level 6 for tests
* Use phpstan/phpstan-phpunit
* Update to PHPStan version 1.10
* Fix mixed bug
* Fix mixed return bug
* Fix paginator bug
* Fix FreshRSS_UserConfiguration
* A couple more Minz_Configuration bug fixes
* A few trivial PHPStan Level 7 fixes
* A few more simple PHPStan Level 7
* More files passing PHPStan Level 7
Add interface to replace removed class from https://github.com/FreshRSS/FreshRSS/pull/5251
* A few more PHPStan Level 7 preparations
* A few last details
* CLI to export/import any database to/from SQLite
Require PHP 5.5+ https://github.com/FreshRSS/FreshRSS/pull/2495
* Travis
* Execution rights
* Fix wrong static fields
* Fix MySQL bad default buffering
https://stackoverflow.com/questions/6895098/pdo-mysql-memory-consumption-with-large-result-set/6935271#6935271https://php.net/manual/ref.pdo-mysql
* Fix count on progression
* Avoid static DB information
To ease working with two DBs at the same time
* Less static, simplify
Needs some testing
* Small corrections
* Special case for SQLite to SQLite
* Modify special case for SQLite
* Remove special case for SQLite
More uniform logic for the 3 databases.
Fix wrong DROP TABLE for SQLite.
* Drop indexes
* Revert "Drop indexes"
This reverts commit f28d2bae09.
* Fix deletion
* Fix classic export
* Update cli/README.md
Co-Authored-By: Marien Fressinaud <dev@marienfressinaud.fr>
* Addressing part of review
* Remove goto 😢
* Travis
* Comment for SQLite case
* Fix missing fields when inserting
