v1.4.0

1.4.0 is primarily a stability release that fixes some bugs in the expression language.

This release also introduces a new feature in expressions called cast functions, which are a better way to define constant complex types such as vectors, rotations, quaternions and matrices. The cast functions are just an overload for existing functions such as quat() and rot() that take constant numeric values. Additionally mat() and vec() functions have been added. Please see the documentation for more info.

Thank you!