FF4 - header file reorg

- Added new util.h and text.h header files.
- Corresponding edits.

src/command.cpp

@@ -34,6 +34,10 @@
 #include <pwd.h>
 #include <time.h>
 
+#include "T.h"
+#include "TDB.h"
+#include "text.h"
+#include "util.h"
 #include "task.h"
 
 #ifdef HAVE_LIBNCURSES