Add a MythCommandLineParser::GetExtra() helper method

This also fixes mythmessage by calling the helper instead of
cmdline.toMap("extra") which needed to be "_extra" (now?).

NOTE: This changes MYTH_BINARY_VERSION, so make clean, etc..

mythtv/libs/libmythbase/mythcommandlineparser.cpp

@@ -1287,6 +1287,11 @@ QStringList MythCommandLineParser::GetArgs(void) const
     return toStringList("_args");
 }
 
+QMap<QString,QString> MythCommandLineParser::GetExtra(void) const
+{
+    return toMap("_extra");
+}
+
 QString MythCommandLineParser::GetPassthrough(void) const
 {
     return toStringList("_passthrough").join(" ");

mythtv/libs/libmythbase/mythcommandlineparser.h

@@ -215,6 +215,7 @@ class MBASE_PUBLIC MythCommandLineParser
 
     QVariant                operator[](const QString &name);
     QStringList             GetArgs(void) const;
+    QMap<QString,QString>   GetExtra(void) const;
     QString                 GetPassthrough(void) const;
     QMap<QString,QString>   GetSettingsOverride(void);
     QString                 GetLogFilePath(void);

mythtv/libs/libmythbase/mythversion.h

@@ -12,7 +12,7 @@
 /// Update this whenever the plug-in API changes.
 /// Including changes in the libmythbase, libmyth, libmythtv, libmythav* and
 /// libmythui class methods used by plug-ins.
-#define MYTH_BINARY_VERSION "0.25.20111006-1"
+#define MYTH_BINARY_VERSION "0.25.20111007-1"
 
 /** \brief Increment this whenever the MythTV network protocol changes.
  *

mythtv/programs/mythmessage/main.cpp

@@ -71,7 +71,7 @@ int main(int argc, char *argv[])
         address.setAddress(cmdline.toString("addr"));
 
     QMap<QString,QString>::const_iterator i;
-    QMap<QString,QString> extras = cmdline.toMap("extra");
+    QMap<QString,QString> extras = cmdline.GetExtra();
     for (i = extras.begin(); i != extras.end(); ++i)
     {
         QString name = i.key();