Make barrels a little easier to destroy (60 instead of 75) - still more than 2 shotgun blasts or a grenade, but in range of dynamite or a well-placed cluster

Add spinner for explosives, add dust on crate impact, crank up explosives a bit

Ensure explosives are spawned somewhere w/ plenty of ground under them

Engine: * Small tweaks to English and German locales Frontend: * Added a new default locale choice ("system default") that uses Qt's guessing to determine the preferred language * Updated ts/qm files