Code Migration

- Migrated taskd JSON parser into task, to provide encode/decode
  capability to Task::composeJSON.
- Migrated taskd utf8 code, replacing old unused code.
- Added unit tests or JSON.
- Migrated Tree updates from taskd.

src/Tree.cpp

@@ -27,9 +27,8 @@
 
 #include <algorithm>
 #include <iostream>
-#include <sstream>
-#include "text.h"
-#include "Tree.h"
+#include <text.h>
+#include <Tree.h>
 
 ////////////////////////////////////////////////////////////////////////////////
 //  - Tree, Branch and Node are synonymous.
@@ -118,6 +117,12 @@ int Tree::branches ()
   return _branches.size ();
 }
 
+////////////////////////////////////////////////////////////////////////////////
+void Tree::name (const std::string& name)
+{
+  _name = name;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 std::string Tree::name () const
 {
@@ -135,9 +140,14 @@ void Tree::attribute (const std::string& name, const std::string& value)
 // Accessor for attributes.
 void Tree::attribute (const std::string& name, const int value)
 {
-  std::stringstream s;
-  s << value;
-  _attributes[name] = s.str ();
+  _attributes[name] = format (value);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Accessor for attributes.
+void Tree::attribute (const std::string& name, const double value)
+{
+  _attributes[name] = format (value, 1, 8);
 }
 
 ////////////////////////////////////////////////////////////////////////////////