use hard limit instead of returning adminLimitExceeded when requested limit exceeds hard; improve (and document) syntax; modify test025 accordingly

honor sizelimit requests on the overall count when pagedResults control is used; cleanup and more features

improve previous commit; now special limit on the number of total entries of a paged results can be set via the limits.  Need to decide whether the default should be unlimited or what

replace calls to dnNormalize2 with calls to dnNormalize

improve limits handling and consistency; return "Admin limit exceeded" instead of "Unwilling to perform"

Coverted LDAP_LOG macro to use subsystem ID int values instead of string values