New USE version 4.1.1 released!

The list of changes includes:

• [GUI] Fixed a crash of the communication diagram when an operation with result value returns to the actor
• [USE] Fixed various errors when exporting model descriptions (e.g. by the command `info model') including: ternary-association navigation, annotations, @pre on allInstances(), let-expressions, inheritance on association classes and derived expressions
• [USE] Added possibility of specifying parents when creating association class in model API
• [USE] Added error message to Plugin API when trying loading the same plugin more than once