Fixed an error caused by a PG 7.3 incompatibility with earlier versions. Youcan no longer subtract an integer from a timestamp but rather must explicitlycast it to an interval number of days.
making skin, acs-content, acs-util packages not be part of core by setting initial_install_p=f. The packages are essentially obsolete or at least not required by acs-core.
Applied Reuven's patch #194 instead: "Basically, I switched to using localtimestamp (rather than current_timestamp), which gets rid of the time zone. Using a parameter of 0 removes the fractional seconds."
