Update ruby-sexp-processor to 4.14.1.
=== 4.14.1 / 2020-02-09
* 2 bug fixes:
* Declared support for ruby 2.2+ to gemspec.
* Fixed alias for `not?` to `-` for ruby <= 2.4. (nard-tech).
=== 4.14.0 / 2020-02-06
* 4 minor enhancements:
* Added '-' as an alias for the 'not?' pattern matching command.
* Added Klass matcher to match on types.
* Added `k` shortcut for Klass & hooked into Sexp::Matcher.parse.
* Added any matcher to pattern parser.
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