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/cdtext.right

@@ -0,0 +1,49 @@
+__________________________________
+
+Disc mode is listed as: CD-DA
+CD-ROM Track List (1 - 3)
+  #: MSF       LSN    Type   Green? Copy? Channels Premphasis?
+  1: 00:02:00  000000 audio  false  no    2        no
+  2: 00:04:00  000150 audio  false  no    2        no
+  3: 00:06:00  000300 audio  false  no    2        no
+170: 00:05:56  000281 leadout (645 KB raw, 645 KB formatted)
+Media Catalog Number (MCN): not available
+Last CD Session LSN: not supported by drive/driver
+audio status: not implemented
+__________________________________
+CD Analysis Report
+
+CD-TEXT for Disc:
+	ARRANGER: The Gnu Community
+	COMPOSER: Another Gnu
+	DISC_ID: 0815 42
+	GENRE: Animal Soundz
+	MESSAGE: Gnu lives!
+	PERFORMER: A Gnu
+	SONGWRITER: A Gnu, too
+	TITLE: The Voice of the Gnu
+	UPC_EAN: 0123456789876
+CD-TEXT for Track  1:
+	ARRANGER: His Brother
+	COMPOSER: His Brother
+	MESSAGE: Free the Gnu!
+	ISRC: DE-GNU-11-00001
+	PERFORMER: Gnu2
+	SONGWRITER: Gnu2
+	TITLE: I Will Survive
+CD-TEXT for Track  2:
+	ARRANGER: The Guy With the Microphone
+	COMPOSER: The Alpha Gnu
+	MESSAGE: Isn't it beatiful?
+	ISRC: DE-GNU-11-00002
+	PERFORMER: Those Particular Gnus
+	SONGWRITER: None in Particular
+	TITLE: A Forest Full of Gnus
+CD-TEXT for Track  3:
+	ARRANGER: An Even Less Famous Gnu
+	COMPOSER: A Not So Famous Gnu
+	MESSAGE: Every Gnu Is Legal!
+	ISRC: DE-GNU-11-00003
+	PERFORMER: Whatwasitsname?
+	SONGWRITER: A Famous Gnu
+	TITLE: Gnu Opera