Lost &U256 operations like div and mod after updating to 0.6.2 #45
Description
While updating from 0.2.10 to 0.6.2 I noticed several ops on &U256 disappeared: a / b, a % b, a * b at least.
Dereferencing them is easy enough (not sure if this has much of a performance impact) but it would be nice if they worked with references too.