- MFH: Change object identity calculation to use uniqid
# Works around behaviour changes introduced in PHP 5.4.14, PHP 5.3.24
# and (where we first noticed them) inside PHP 5.5.0beta1 with the
# fix to https://bugs.php.net/bug.php?id=64370
# See issue #286
- MFH: Change implementation to no longer rely on microtime()
# See issue #286