Verbosity

- Added 'affected' verbosity token.
- Deprecated 'rc.echo.command'.
- Updated config defaults.
- Labelled all deprecated 'echo.command' references with '// Deprecated 2.0'
- Added unit tests to start the verbosity testing.  Not complete.
- Updated taskrc.5 man page.

src/commands/CmdModify.cpp

@@ -165,7 +165,8 @@ int CmdModify::execute (std::string& output)
 
   context.tdb2.commit ();
 
-  if (context.config.getBoolean ("echo.command"))
+  if (context.verbose ("affected") ||
+      context.config.getBoolean ("echo.command")) // Deprecated 2.0
   {
     if (count == 1)
       out << format (STRING_CMD_MODIFY_TASK, count) << "\n";