* binarization/sauvola_ms.hh: Fix compilation issues on MacOS X.

	* core/component_set.hh: Add labeled_image_() member.

	* debug/save_bboxes_image.hh: Add a missing include.

	* preprocessing/split_bg_fg.hh,
	* primitive/extract/components.hh: Fix namespace ambiguities.

	* src/text_in_article.cc: Rename as...
	* src/text_in_article_pbm.cc: ... this.

	* src/Makefile.am: Update source file names.