Does not actually change behaviour, but ensures that the hyphen
is not interpreted as a range identifier should it be placed
between two characters which PCRE regards as "rangeable".
The entire framework repo (with the exception of system-generated files) has been amended to respect the 120c line-length limit. This is in preparation for the enforcement of this rule with PHP_CodeSniffer.
The intl extension in PHP 5.4 provides a Transliterator class, which
conflicts with the SilverStripe one. This leads to some really weird
ReflectionExceptions about Transliterator's constructor being
private.