Split is done

Hi! I've merged the split pull, so now we have the spec split into chapters. Please tell me if there are any problems. I've checked the internal links and they seem to be working OK, if you notice anything broken please tell me. php-spec-draft.md is now a copy of 00-specification-for-php.md for BC reasons, if anybody has better ideas please share or submit pulls. I've tried to merge all simple pulls before the split, but some need more review/discussion, so unfortunately it means they have to be redone on the new files. Sorry about that. -- Stanislav Malyshev, Software Architect SugarCRM: http://www.sugarcrm.com/