Recover the whence feature in CAF::File*.
Revert "use each_arrayref (minimum module 0.33)"

There are no RPMs for it on EL6.

This reverts commit ea355eac9bebfb2c4913cd5b08e41172db608acd.

Conflicts:
	src/main/perl/FileEditor.pm
Merge pull request #19 from piojo/whences-again

Restore the whence feature