r4229 bugfix: IPv6 was broken with PHP older than 5.2
all(hopefully) implicit conversions from IPv6Address class into string using magic __toString class method was replaced by exclicit toBin() method calls.
affected functions:
renderSeparator
getPageNumOfIPv6
scanIPv6Space
bindIPv6ToObject
getIPv6AddressNetworkId
updateV6Address
updateIPv6Bond
unbindIPv6FromObject
createIPv6Prefix
IPv6NetworkCmp
IPv6Address class:
new field-proxy function toBin()
magic method __toString was substituted by temporary backtrace-showing code to find hidden calls to magic method before the release occurs.