v1.3.3

HalfIntegers v1.3.3

Diff since v1.3.2

Merged pull requests:

• Add tests for range(start; length) and range(stop; length) (#30) (@sostock)
• Add package to docs project (#31) (@sostock)
• add specific Half constructor for Rational (#32) (@Jutho)
• Faster twice([T,] ::Rational) (#33) (@sostock)
• Simplify half(Half{T}, x) implementation (#34) (@sostock)
• Release v1.3.3 (#35) (@sostock)
• Upgrade Documenter to v0.27 (#36) (@sostock)