segregate big, exhaustive, slow tests to their own test case
iss11: sloppy refactor broke CritDistribution; fixed and added unit tests
added acknowledgements
minor text changes
use inheritence for more efficient caching of cumulative probabilities
iss10: new special: -1 per die (warlord)
refactor: a couple specials didn't end in 'Special'
added Desecrated Vault Special
bumped version number