EvalEx 3.1.1 released

[uklimaschewski]

What's Changed

• Fixes OOM error with multiple decimal points in a number literal by @uklimaschewski in fixes OOM error with multiple decimal points in a number literal #413
• Fixes equals and not equals comparison to ignore decimal scale by @uklimaschewski in * fixes equals and not equals comparison to ignore decimal scale #422
• Fixes documentation layout errors in concepts/date_time_duration.md
• Adds Java version information to README.md and documentation

Full Changelog: 3.1.0...3.1.1