[Pharo-project] [update 3.0] #30043

[Marcus Denker]

30043
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10302 RBparser: improve error message
        https://pharo.fogbugz.com/f/cases/10302
        
10286 Remove NaturalLanguageTranslator from image startup list
        https://pharo.fogbugz.com/f/cases/10286/
        
10109 MNU : SmalltalkEditor>>browseItHere:
        https://pharo.fogbugz.com/f/cases/10109
        
and remove Opal repos


Diff information:
http://smalltalkhub.com/#!/~Pharo/Pharo30/diff/AST-Core-MarcusDenker.127