Improved error message for wrong types in func spec string declarations
Improved input type checking and consistency between input args to Point and Pointset (thanks to Vladimir Zakharov)
Fixed aux variable definitions to use any code inserts provided by user
Improved __repr__ behavior of Predicate class when lacking a subject
Added extra_funcspec_args option to makeZeroCrossEvent() to support high-level events that access runtime-created functions, etc., especially using code inserts
Improved support for use of custom functions using code inserts
FuncSpec now supports all symbolic objects appearing in user definitions, in particular title case functions like Pow and Exp
Merge changes from bzr