use egdb by default

Index: src/SeerGdbWidget.cpp
--- src/SeerGdbWidget.cpp.orig
+++ src/SeerGdbWidget.cpp
@@ -46,7 +46,7 @@ SeerGdbWidget::SeerGdbWidget (QWidget* parent) : QWidg
     _catchpointsBrowserWidget           = 0;
     _gdbOutputLog                       = 0;
     _seerOutputLog                      = 0;
-    _gdbProgram                         = "/usr/bin/gdb";
+    _gdbProgram                         = "${LOCALBASE}/bin/egdb";
     _gdbArguments                       = "--interpreter=mi";
     _gdbASyncMode                       = true;
     _assemblyShowAssemblyTabOnStartup   = false;