More renaming.

More renaming.

sed -i "s/emit_text/emit_plain/g" src/lib/*.cc src/lib/*.h
sed -i "s/emit_image_start/emit_bitmap_start/g" src/lib/*.cc src/lib/*.h
sed -i "s/emit_text_start/emit_plain_start/g" src/lib/*.cc src/lib/*.h
sed -i "s/render_subtitles/render_text/g" src/lib/*.cc src/lib/*.h src/lib/wscript test/*.cc
sed -i "s/ImageStart/BitmapStart/g" src/lib/*.cc src/lib/*.h
sed -i "s/TextStart/PlainStart/g" src/lib/*.cc src/lib/*.h test/*.cc src/wx/*.cc
sed -i "s/ImageSubtitle/BitmapText/g" src/lib/*.cc src/lib/*.h
sed -i "s/text_subtitle/plain_text/g" src/lib/*.cc src/lib/*.h src/lib/wscript src/wx/*.cc src/wx/*.h test/*.cc
sed -i "s/image_subtitle/bitmap_text/g" src/lib/*.cc src/lib/*.h
mv src/lib/render_subtitles.cc src/lib/render_text.cc
mv src/lib/render_subtitles.h src/lib/render_text.h
mv src/lib/text_subtitle.cc src/lib/plain_text.cc
mv src/lib/text_subtitle.h src/lib/plain_text.h