Notification of string changes

Author: Petr Skoda
convert printing support to new booktool plugin
fixed #6

AMOS BEGIN
MOV [pluginname,mod_book],[pluginname,booktool_print]
MOV [printbook,mod_book],[printbook,booktool_print]
MOV [printchapter,mod_book],[printchapter,booktool_print]
MOV [printdate,mod_book],[printdate,booktool_print]
MOV [printedby,mod_book],[printedby,booktool_print]
MOV [book:print,mod_book],[print:print,booktool_print]
AMOS END


http://git.moodle.org/gw?p=moodle.git;a=commit;h=7927cab1b1f69e3a338347511ed4d52573fab28c
http://github.com/moodle/moodle/commit/7927cab1b1f69e3a338347511ed4d52573fab28c

- 2.3 en [book:print,book]
- 2.3 en [printbook,book]
- 2.3 en [printchapter,book]
- 2.3 en [printdate,book]
- 2.3 en [printedby,book]