Author: David Balch
MDL-36874 mod_book: Add text navigation.
Based on a patch by Matthew Cannings, this replaces Book's previous/next arrow
image links with a choice of: no links, image links, or chapter title text links.
http://git.moodle.org/gw?p=moodle.git;a=commit;h=f4de84614379ac7e5d0df74c89cddb6585946884
http://github.com/moodle/moodle/commit/f4de84614379ac7e5d0df74c89cddb6585946884
+ 2.9 en [navimages,mod_book]
+ 2.9 en [navoptions,mod_book]
+ 2.9 en [navoptions_desc,mod_book]
+ 2.9 en [navstyle,mod_book]
+ 2.9 en [navstyle_help,mod_book]
+ 2.9 en [navtext,mod_book]
+ 2.9 en [navtoc,mod_book]