- Moved the intro from reference.xml to book.xml
- Change the intro ID to intro.<extname>
- Moved examples into its own chapter
- (Note: the first example ID was changed to "dba.example"
And the example chapter got the ID "dba.examples"
- Moved the setup sections to setup.xml
- Added empty constants <appendix>
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@248347 c90b9560-bf6c-de11-be94-00142212c4b1
