Upgrade jsoncpp to version 1.0.0 to match the copy used by Skia's testing tools.

This mirrors the contents of the upstream repository at...
https://github.com/open-source-parsers/jsoncpp/commit/7165f6ac4c482e68475c9e1dac086f9e12fff0d0

Bug: 17997234
Change-Id: I87a8312f9d030e5027f4ca5b1568f8374a856632
diff --git a/test/data/test_basic_08.expected b/test/data/test_basic_08.expected
index c8db822..caf5352 100644
--- a/test/data/test_basic_08.expected
+++ b/test/data/test_basic_08.expected
@@ -1,2 +1,3 @@
+// C++ style comment
 .=null