Parser

- Added static method to scan argv[] for overrides without a parse tree, so
  that any rc:<file> arguments can be used to locate the rc file, load it, and
  proceed with command line parsing which relies on things like rc.dateformat.

src/Parser.h

@@ -37,6 +37,9 @@ class Parser
 public:
   Parser ();
   ~Parser ();
+
+  static void getOverrides (int, const char**, std::string&);
+
   void initialize (int, const char**);
   void clear ();
   void appendStdin ();