Eunit 2.2.10

Previously forgotten contribution by Andreas Amsenius:

    Improve surefire xml <testcase> element

    Remove the 'description' attribute. It is not generated by Apache
    Ant or Maven Surefire and probably ignored by all other Surefire
    tools. Confirmed for Jenkins.
    
    Add testcase description (if there is one) to the 'name' attribute.
    
    Change format of 'name' attribute to look more like the output from
    running eunit with verbose. Line number and arity was quite obscure
    and arity is not useful as it is always 0.