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/cleantests.py b/test/cleantests.py
new file mode 100644
index 0000000..c38fd8f
--- /dev/null
+++ b/test/cleantests.py
@@ -0,0 +1,10 @@
+# removes all files created during testing
+import glob
+import os
+
+paths = []
+for pattern in [ '*.actual', '*.actual-rewrite', '*.rewrite', '*.process-output' ]:
+    paths += glob.glob( 'data/' + pattern )
+
+for path in paths:
+    os.unlink( path )