zprint-filter-1.2.3

A fair number of fixes and changes in this release. See the CHANGELOG.md for details, but notable new things are:

• New :range configuration options: :use-previous-!zprint? and :continue-after-!zprint-error?. These allow someone doing :range formatting on a file (string) which has ;!zprint formatting directives to have the lines in the range formatted the same when doing just the range or the whole file. :use-previous-!zprint? if true will scan all previous ;!zprint directives prior to formatting the range. :continue-after-!zprint-error? if true will ignore errors in any ;!zprint directives, and output any errors in the map returned by :output {:range? true}.

• An alternative way to format metadata was created. It is :style :meta-alt. It is presently experiemental. Issue #224.

• letfn didn't indent its fns like fns. Now it does. And if they are multi-arity, the various arities don't hang, but rather flow. Issue #221.

• The styles :community and :rod didn't compose, because :guided was not considered a "body" function type. Now they do. Issue #223.

• zprint-file-str was not thread-safe, for a variety of reasons. Now it is, and configuration is thread-safe as well. Issue #226.

• Figured out some Figwheel issues. If you use zprint with Figwheel, check out the CHANGELOG.md, or see issue #231.