Code Cleanup

- Eliminated 'Sensor' code and tests, which would only have been used
  for the interactive version.
- Eliminated obsolete ui code.

src/CMakeLists.txt

@@ -8,15 +8,15 @@ set (task_SRCS API.cpp API.h Att.cpp Att.h Cmd.cpp Cmd.h Color.cpp Color.h
                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 Subst.cpp Subst.h
-               TDB.cpp TDB.h Table.cpp Table.h Task.cpp Task.h Taskmod.cpp
-               Taskmod.h Thread.cpp Thread.h Timer.cpp Timer.h Transport.cpp
-               Transport.h TransportSSH.cpp TransportSSH.h TransportRSYNC.cpp
-               TransportRSYNC.h TransportCurl.cpp TransportCurl.h Tree.cpp
-               Tree.h burndown.cpp 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 utf8.cpp utf8.h util.cpp util.h Uri.cpp Uri.h)
+               Sequence.cpp Sequence.h Subst.cpp Subst.h TDB.cpp TDB.h Table.cpp
+               Table.h Task.cpp Task.h Taskmod.cpp Taskmod.h Thread.cpp Thread.h
+               Timer.cpp Timer.h Transport.cpp Transport.h TransportSSH.cpp
+               TransportSSH.h TransportRSYNC.cpp TransportRSYNC.h
+               TransportCurl.cpp TransportCurl.h Tree.cpp Tree.h burndown.cpp
+               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
+               utf8.cpp utf8.h util.cpp util.h Uri.cpp Uri.h)
 
 add_library (task STATIC ${task_SRCS})
 add_executable (task_executable main.cpp)