v1.1 Fix off by one error in right justified data

This version addresses the bug identified in issue #2. There was an off by one error in calculating an index which would cause the program to:

1. Incorrectly convert right justified data (it was always 1/2 of what it should be, the least significant bit was being ignored)
2. Crash when the number of data bits was equal to the number of bits per slot.

v1.0

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