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/CMakeLists.txt

@@ -5,8 +5,8 @@ set (task_SRCS API.cpp API.h Att.cpp Att.h Cmd.cpp Cmd.h Color.cpp Color.h
                Config.cpp Config.h Context.cpp Context.h Date.cpp Date.h
                Directory.cpp Directory.h Duration.cpp Duration.h File.cpp
                File.h Filter.cpp Filter.h Grid.cpp Grid.h Hooks.cpp Hooks.h
-               Keymap.cpp Keymap.h Lisp.cpp Lisp.h Location.cpp Location.h
-               Nibbler.cpp Nibbler.h Path.cpp Path.h Permission.cpp
+               JSON.cpp JSON.h Keymap.cpp Keymap.h Lisp.cpp Lisp.h Location.cpp
+               Location.h Nibbler.cpp Nibbler.h Path.cpp Path.h Permission.cpp
                Permission.h Record.cpp Record.h Rectangle.cpp Rectangle.h
                Sensor.cpp Sensor.h Sequence.cpp Sequence.h StringTable.cpp
                StringTable.h Subst.cpp Subst.h TDB.cpp TDB.h Table.cpp Table.h
@@ -17,7 +17,7 @@ set (task_SRCS API.cpp API.h Att.cpp Att.h Cmd.cpp Cmd.h Color.cpp Color.h
                command.cpp custom.cpp dependency.cpp diag.cpp edit.cpp
                export.cpp history.cpp i18n.h import.cpp interactive.cpp
                recur.cpp report.cpp rules.cpp rx.cpp rx.h text.cpp text.h
-               util.cpp util.h Uri.cpp Uri.h)
+               utf8.cpp utf8.h util.cpp util.h Uri.cpp Uri.h)
 
 add_library (task STATIC ${task_SRCS})
 add_executable (task_executable main.cpp)