the "error handling" section under "features"
does not tell about the new error levels and
symbolic constants

this can cause problems as it suggests an 
errorlevel of 7 for everything except warnings
as this will block compiler warnings and errors
from Zend, resulting in "document contains no data"
and no error message at all for certain syntax
errors in "require"ed files 
( as unclosed '"',')' or '}' )