[OnePiece5] error_get_last is available in 5.2 or later of PHP version.
[OnePiece5] debug_backtrace args, version 5.2.5 later
[Merge]
[merge]
[OnePiece5] Fix: $this to self
[Config] Change: Parent-class is OnePiece5
[Form5] Change: Get File-input-value is Document-root-path
[Config] Change: parent class is undone.
[Form5] Change: File uplode's remover.