v0.3.15 NC v22 ready with migration PHP code

From NC v22 app info/database.xml not supported.
Migration [PHP] code autogenerated in earlier NC v21 and uploaded.
Appinfo/database.xml renamed to avoid error message (-> can be deleted to, once you have the lib/Migration/VersionxxxDateyyyy.php file)
This time version number properly updated in info.xml :)

What's Changed

• NC v22 support migration code by @n-connect in #3
• Update info.xml by @n-connect in #2
• Rename database.xml to _database_xm.old by @n-connect in #1

New Contributors

• @n-connect made their first contribution in #3

Full Changelog: v0.3.14...v0.3.15

Layout fix works in NC21

v0.3.14

Layout fix works in NC21

NC 17 fix update

Simple appinfo/info.xml max version update to 17 & quick test on functionality: works as worked on NC 16 previously

Nextcloud v16 fixes

Security.php: from NC16 certain NC functions removed, one of them affects the TemporaryPassword generation. Oneline dirty fix using random_bytes() PHP function available from PHP 7.0. NC16 requires PHP7.1, everybody wins.