File tweaks.

Tweaked the about.xml.

You can now make certain weapons out of stony materials.
Added a MeleePenetrationFactor to stony materials.

Made some minor balance tweaks.

Tweaked the armor penetration capabilities of some bows.

Made some balance tweaks to the assault shield from Combat Extended Armory.

Added a new research project for the VWE research overhaul, called cannons.

Tweaked the costs of cannon shells.

Updated the textile rebalance.

Slightly increased the armor effectiveness of balaclavas. This does not make them viable armor, to be clear, but it does mean devilstrand and hyperweave balaclavas will give 1-2mm of protection. Not much, but still something.