Off-by-one errors in random number generation.

[MynockSpit]

The fix in 0.2.6 for rounding errors causes off-by-one errors.

e.g. Running 1d6 repeatedly will occasionally produce 7s.

let roller = new DiceRollerFactory()
roller.rollValue('1d6')

For example:

[lowercasename]

This is particularly easy to see if you ask the roller to roll 1d1. It frequently rolls 2.

[Prezygopothesis]

toFixed is specified to round the value