Small icon changes to categories.

I made the graph more robust for corrupt data -
I've added a REPAIR button - if you data is corrupted because of breaking savegames.

Renamed and readjusted the spear.png (now ttfspear.png)

polished once again some stuff ( pure cosmetic )

Refined chart colors.

Small bugfix for localisations.

Big UI Update
Added UI Screen for showing Charts: Kills per Day , Kills with weapons and categories.
Added Modoptions for Keybind Toggle.

Hidden Update -
Gathering Informations for upcoming diagrams and statistics.

If you are really curious what is this about:

Press "KP_9" ingame (keypad 9)
And you'll see what I'm working with.
(it's not 100% done yet)

Community Feedback:

Allow single name entries for unique id storage.
Put all uniqueid files in a seperate folder.

DONE

Changelog:
Polish translation added.
Added a new method for displaying the calendar.