b3d2a3a1d7e096b0f97a2a5295d4fa610336de04
angie
  Fri Oct 12 11:02:37 2018 -0700
Adding jsonQuery, which extracts values from a jsonElement tree using a simple path notation e.g. "journals[publisher=Nature].articles[*].author[0].lastName".
aside: slFreeList doesn't check for NULL.  I think it should, but it's used in a zillion places so for now I'll just check before calling.

diff --git src/lib/tests/input/jsonQueryTestJson.txt src/lib/tests/input/jsonQueryTestJson.txt
new file mode 100644
index 0000000..03a7d6e
--- /dev/null
+++ src/lib/tests/input/jsonQueryTestJson.txt
@@ -0,0 +1,5 @@
+{}
+"just a string"
+100
+[{"a":"two"}, {"a":"things"}]
+{ "id" : 1234, "name" : "z", "books" : [ {"title": "hobbit", "someGuy":"Bilbo", "isTrilogy":false, "number": 0, "double": 0.0, "other": null}, {"title": "LOTR:FOTR", "someGuy":"Gandalf", "isTrilogy":true, "number": 1, "double": 1.0 }, {"title":"LOTR:TT", "someGuy":"Sam", "isTrilogy":true, "number": 2, "double": 2.0 }, {"title":"LOTR:ROTK", "someGuy": "Aragorn", "isTrilogy":true, "number": 3, "double": 3.0, "other": "all done"}], "extra":{ "extra": [3209423, 2354341]} }