TEXT-67: use [lang]'s Range to replace if/else logic

[kinow]

Simplify logic by using Apache Commons Lang's Range class. The if in the translate method is not very intuitive.

[coveralls]

Coverage decreased (-0.004%) to 96.649% when pulling 9493dfb on kinow:TEXT-67 into 343b4a9 on apache:master.

[coveralls]

Coverage decreased (-0.004%) to 96.649% when pulling 9493dfb on kinow:TEXT-67 into 343b4a9 on apache:master.

[coveralls]

Coverage decreased (-0.004%) to 96.649% when pulling 9493dfb on kinow:TEXT-67 into 343b4a9 on apache:master.

[ameyjadiye]

Though its very negligible -0.004%, I wonder why code coverage is decreased ?

[kinow]

I wonder if perhaps due to the fact that it removes code & if/else branches.

[PascalSchumacher]

Let's merge this!