* src/text_in_article_pbm.cc: Update call to text::recognition.

	* text/clean.hh: Resize text lines according to their x_height.

	* text/extract_lines.hh: Update call to extract::components.

	* text/merging.hh: Remove Debug.

	* text/recognition.hh: Update call to text::clean and do
	recognition only on lines considered as text.

	* subsampling/bilinear.hh,
	* upsampling/bs2x.hh: New.