Fixes itemStorage loading

itemSlotClass instances were not created during game load. Haven't
checked if same should be done with inventory/racks/whateverelse
Merge branch 'master' of https://github.com/herp-a-derp/Corruption-of-Champions
typos fixed

sensEtivity -> sensItivity
dynStats remade to allow +-*/= operators. Tested and applied in several places.

Now we can dynStats("lust=",0) instead of stats(zeroes,-100,zeroes)
Merge branch 'master' of https://github.com/herp-a-derp/Corruption-of-Champions
Merge branch 'master' of https://github.com/herp-a-derp/Corruption-of-Champions
Merge branch 'master' of https://github.com/herp-a-derp/Corruption-of-Champions
Merge branch 'master' of https://github.com/herp-a-derp/Corruption-of-Champions
Merge pull request #172 from aimozg/master

Fixes itemStorage loading. dynStats enhanced