Updated FlintKnife (Stone Knife) entry

- updated item tags. Inventory sorting and action highlight problems should be gone now.
- fixed scissors, ice pick and garden hoe

Fixed Golf club and Crowbar values.

Updated to r41

Fixed a typo preventing most of the item data from loading.

Rolled back to the original approach with rewriting item entries completely so as to not be at the mercy of Lua demons.

Fixed a bug with lua placement

Went from rewriting items to altering their respective entries in the database, with the help of Item Tweaker API, on which this mod is now dependent.

Included all items in the newly released IWBUMS 41.

Started support for other mods, but there are none, yet.

Updated to the stable release of 21.12.2018
Fixed gunshot sounds
Added barricading ability to Sledgehammer, Frying pan, Golf club, Ice pick, Fire Axe and Stone Axe, because they all can realistically be used to hammer in nails.

Really fixed items breaking on load.