todo.txt

change org.joda.time/ReadableInstant => org.joda.time/Instant
  add to tagstr
  replace tupelo.java-time/stringify-times with tagstr encode/decode

walk-with-parents
  => walk-data
    combine with submatch? for power
    submatch2? allows predicates as values:  {:a odd? :b "buzz"}  or [odd? even? 3] 

tagval - polish 
  {:LocalDate "1999-12-31"} {:int 5} {:dbl 6.0} {:user {:name "Joe" :age 33 :city "Springfield"}}
  {:e 512} {:a 666} {:v 777}
  (tv/->untagged ...)  :- (s/cond-pre tsk/TagVal s/Any)

tupelo.string/tagstr => "<#Integer 3>"  "<#Float 4>" and table of constructors
  elide `java.lang.` prefix?

java-time 
  stringify-times & others:  merge with misc/walk-obj->tagstr
  fixed-point?  ZDT, Instant, others?

java-time.epoch - home for esec, emillis, enanos, eday, eweek, equarter, eyear
  tagval by default

tupelo.string.safe: trim normalize lowercase uppercase whitespace-collapse ...