Drop support for Guava v10 - v13 to simplify RangeFactory #58
Description
As support is added for newer Guava versions, retaining backwards compatibility with oldest versions is becoming more difficult, and it is not guaranteed there is actual compatibility.
Due to this, and complexity of RangeFactory (to try to support Guava versions down to v10), let's simplify RangeFactory by only using methods added in Guava v14.
This affects Jackson 2.10 and later; older versions up to 2.9.x will support older Guava versions.