fmt
Add hooks, handle(), path()
Add comment
Replace goto EXIT with last CASE, to be uniform with previous change
Add tests for hook_before_rotate, hook_after_rotate
Release v0.21
Wording and fix example code in POD
Release v0.22
Merge remote-tracking branch 'upstream/master'

Conflicts:t push origin master
	lib/File/Write/Rotate.pm
Fixed minor issues with Pod