1) cdtext objects are no longer associated with a track but with the disc.

2) - cdio_get_cdtext no longer takes track as an argument
- cdtext_get, cdtext_get_const, cdtext_set require track argument
3) Language, Genre, Genre Code and Encoding Fields are now properly parsed and stored in the cdtext object
4) Added public function cdio_get_cdtext_raw to extract the binary CD-Text
5) Added CDTEXTFILE keyword logic in cue sheet parser. Parses binary/raw CD-Text files
6) Added cdtext_genre2str to convert genre code
7) altered the example programs, test drivers, cdda-player and cd-info to work with these changes
8) Added test case
9) A few smaller changes
A disc either holds CD-Text for all the tracks or does not hold any. Therefore a CD-Text object for the whole disc seems more natural to me. It also enables us to store global fields, like genre, encoding, language.

Patch was tested on GNU/Linux 32 bit running Gentoo.

test/data/cdtext.cue

@@ -0,0 +1,8 @@
+CDTEXTFILE "cdtext.cdt"
+FILE "cdtext.bin" BINARY
+  TRACK 01 AUDIO
+    INDEX 01 00:00:00
+  TRACK 02 AUDIO
+    INDEX 01 00:02:00
+  TRACK 03 AUDIO
+    INDEX 01 00:04:00