Complete 3.0 upgrade notes about NULL returned on missing items
Add windows filename rule as an option for upload files
Revert "Add windows filename rule as an option for upload files"

This reverts commit 23719ab569c9c8d6b791f65d7861daba3895ddcb.
Make the bad filename array public in Security library
Rename bad chars property to filename_bad_chars, remove the setter and add changelog entry
Merge pull request #2575 from wmh/filename_rule

Add windows filename rule as an option for upload files
[ci skip] Alter a changelog line
Merge pull request #2566 from vlakoff/develop

Complete 3.0 upgrade notes about NULL returned on missing items
Fix #2501 & another -related bug
Fix #2585