Added Korean Translation file (for fixing #51)

[moseskim]

This PR offers a Korean translation of the gitinspector application (as referenced in #51).

• added messages_ko.po
• modified README.md for changing member or Korean translation

Any feedback would be appreciated.

Regards.

[adam-waldenberg]

Hi. Looks good.

Were the following ones skipped on purpose?:

+msgid "% in comments" +msgstr "% in comments"

+msgid "% of changes" +msgstr "% of changes"

+msgid "Commits" +msgstr "Commits"

[moseskim]

You're right.

Those three terms have been used as the original ones on purpose, because those original messages are more easier and clearer to understand, I thought.

[adam-waldenberg]

@MosesKim Very well. As far as I am concerned you are the boss of this file - so you decide. I'll include the translation in the next 0.4.5 release.

[moseskim]

@adam-waldenberg good. I decide that I will use those three terms as not translated . Thanks you for your advice and review comments.

Hope that I can enjoy the Korean translation in later release 0.4.5.

Regards

[adam-waldenberg]

Moved to 0.5.0.