Build

- Enabled compiler warnings, which were off.  Yikes.
- Fixed all compiler warnings on OSX.

src/commands/CmdUrgency.cpp

@@ -44,7 +44,7 @@ CmdUrgency::CmdUrgency ()
 }
 
 ////////////////////////////////////////////////////////////////////////////////
-int CmdUrgency::execute (const std::string& command_line, std::string& output)
+int CmdUrgency::execute (const std::string&, std::string& output)
 {
   // Get all the tasks.
   std::vector <Task> tasks;