Moved the following definitions to include/config.h from Makefile.global:

	NAMEDATALEN
	OIDDATALEN
	EUROPEAN_DATES
	HBA
	DEADLOCK_TIMEOUT
	OPENLINK_PATCHES
	NULL_PATCH
	ARRAY_PATCH

Attempting to document and centralize as many of the "defines" as possible...
kinda useless to have defines if nobody knows they exist, eh?