repair glade; switched to gladeui-2.0; removed the internal-child in psppire-dialog.

[pspp] / build-aux / .gitignore

/arg-nonnull.h
/c++defs.h
/config.libpath
/config.rpath
/gitlog-to-changelog
/install-reloc
/reloc-ldflags
/unused-parameter.h
/warn-on-use.h