Added a csri based renderer/decoder for ass/ssa subtitles. Can use

libass and asa as rendering backends. By equinox. Part of Google
Summer of Code

modules/codec/Modules.am

@@ -29,6 +29,7 @@ SOURCES_fake = fake.c
 SOURCES_realaudio = realaudio.c
 SOURCES_sdl_image = sdl_image.c
 SOURCES_zvbi = zvbi.c
+SOURCES_csri = csri.c
 SOURCES_cdg = cdg.c
 SOURCES_fluidsynth = fluidsynth.c
 SOURCES_cc = cc.c cc.h