[oe] packages versioning

[Mr Dash Four]

>> One more query regarding this - how do I remove
>> packages I do not want included in the final image? Is there a way to do
>> that (fairly) easily?
>>     
>
> Yes, create your own image recipe.
>   
I was hoping that there is an easier option ("(fairly) easily" being the 
keywords here)!

I tried to trace where these packages are derived from, but could not 
find anything. For example, I'd like to remove ash (and possibly the 
whole BusyBox setup) and replace it with bash and their package 
equivalents. By looking at the tasks/ as well as images/ directories I 
couldn't find where these packages are derived from, hence the above 
question.