Moving to integers for n-grams, WIP
More int-key updates
Further work after int key move
Performance work
Removing unused temp string that kills performance
Revert "Performance work"

This reverts commit 41f851897105ca82bfe9f48af1991894da4e8cd6.
Merge commit 'HEAD@{2}'
Disabling DIoC calculation
Vector by reference to CalculateScore()
Parameter changes
Pass key to solver as reference instead of pointer
Turning keys within the solver into references
Performance, including switch to C-style file parsing
Reenable decrypt
Cleanup of pointers and general flow
More cleanup, mostly of unused stuff