On 64-bit platforms the in-memory footprint of our libraries is quite a bit
larger than usual, and we hit the 8MB default memory limit before we call
raise_memory_limit(). This patch moves raise_memory_limit() and
get_realsize() to setuplib so we can call them earlier, and moves the
call to _before_ we include the libraries.
On AMD64, for MOODLE_17_STABLE the footprint is about 9.5MB. Diet time? :-)
DB to detect such value dinamically. Useful for installations
not using the standard installer but manually edited config.php
files.
Little TODO: modify a bit the initial config tables insets to
insert this value, avoiding to call it for each request. Coming
soon (although not mandatory for 1.6beta). Tested against both
MySQL and PostgreSQL with unicode and non-unicode DBs.
