Making MiniExiftool::Error public. Thanks to Mathias Stjernstrom for …

…sending a patch.

Version 1.0.0.

New method MiniExiftool.opts for manupilationg the standard opts; enc…

…oding conversion using the -L-option of the exiftool command-line application.

Version 0.6.0.

Warning "parenthesize argument(s) for future version" removed

Changelog updated.

Version 0.4.1

Cleaning tests.

Typos fixed

Updated to version 0.3.0