[BLUEJ-1310] New interface versus new Class

An interface is not a class. It is counter-intuitive (and somewhat misleading) to have to press a New Class button to create an interface. Could we have a separate button, or could the button text be less specific, or could the tool tip give more information?  (I realise it has been this way for a long time.)

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Issue metadata

• Issue type: Task
• Priority: Medium