JSON

- Replaced old Tree-based parser with a faster, leaner parser.
  Currently lacking good error handling and a large test suite.
- Integrated new parser into Task object, for encode/decode.
- Replicated same basic unit tests.  Needs more.
- Fixed bug in handleShell that failed to call the new Context::initialize2.
- Removed debugging code from CmdInstall.
- Implemented format() that does not require width and precision args.

src/text.cpp

@@ -760,6 +760,14 @@ std::string format (double value, int width, int precision)
   return s.str ();
 }
 
+////////////////////////////////////////////////////////////////////////////////
+std::string format (double value)
+{
+  std::stringstream s;
+  s << value;
+  return s.str ();
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 std::string leftJustify (const int input, const int width)
 {