allow location of default settings file to be configurable * gui/default-qt-settings: Rename from default-settings. * gui/Makefile.am (octetc_DATA): New variable. * resource-manager.cc (default_qt_settings_file): New function. (resource_manager::reload_settings): Call default_qt_settings_file to find default settings file. * run-octave.in: Set OCTAVE_DEFAULT_QT_SETTINGS in the environment for running octave. * gui/src/Makefile.am (liboctgui_la_CPPFLAGS): Include -I../../src, -I../../src/interpfcn, and -I../../src/parse-tree in the list.

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