v2.0.0-rc.0

Decimal v2.0 requires Elixir v1.2+.

Breaking changes

• Change Decimal.compare/2 to return :lt | :eq | :gt
• Change Decimal.cast/1 to return {:ok, t} | :error
• Change Decimal.parse/1 to return {t, binary} | :error
• Remove :message and :result fields from Decimal.Error
• Remove sNaN
• Rename qNaN to NaN
• Remove deprecated support for floats in Decimal.new/1
• Remove deprecated Decimal.minus/1
• Remove deprecated Decimal.plus/1
• Remove deprecated Decimal.reduce/1
• Remove deprecated Decimal.with_context/2, Decimal.get_context/1, Decimal.set_context/1,
  and Decimal.update_context/1
• Remove deprecated `Decimal.decimal?/1

Deprecations

• Deprecate Decimal.cmp/2