Fixes for errors and warnings on doc-it manual build

[alfsb]

Hi @php/doc-tr-team . To (almost) fix manual building, language/oop5.xml must be updated, to include:

diff --git a/language/oop5.xml b/language/oop5.xml
index 07471db8..53ab5ecc 100644
--- a/language/oop5.xml
+++ b/language/oop5.xml
@@ -28,6 +28,7 @@
 
   &language.oop5.basic;
   &language.oop5.properties;
+  &language.oop5.property-hooks;
   &language.oop5.constants;
   &language.oop5.autoload;
   &language.oop5.decon;
@@ -49,6 +50,7 @@
   &language.oop5.references;
   &language.oop5.serialization;
   &language.oop5.variance;
+  &language.oop5.lazy-objects;
   &language.oop5.changelog;
 </chapter>

There are various XInclude warnings. Most of then can be fixed by updating (or renaming out) reference/filesystem/functions/fgetcsv.xml.

This will leave only two other files causing XInclude warnings, the file for function.bcdiv and the file for function.gmp-init. These may be fixed after one change on doc-base goes live.

Let me know if these help, into making doc-it a live project again.