Multi-Institution Bug and Class Inheritance Bug

[asouther4]

We are running into two problems:

1. We are unable to set up an MES with two institutions at a time in the config file.
2. Trying to inherit one directive enabled class from another directive enabled class doesn't seem to work.

Here are some notes from our testing of problem 2:

• We get an error if the inheriting class is defined as a @directive_enabled_class. Only the parent class should be defined as a @directive_enabled class

• It does not seem possible to add directive methods to the inheriting class. If you try to "override" a directive method defined in the parent class, mTree simply runs the parent's version of the method. If you remove a directive method from the parent class and add it to the inheriting class, this causes an mTree error.

• Therefore, it seems inheriting classes can only have methods without a directive decorator.