[AutoQA] #278: Fix terminology in AutoQA library

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#278: Fix terminology in AutoQA library
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 Reporter:  kparal       |       Owner:             
     Type:  enhancement  |      Status:  new        
 Priority:  minor        |   Milestone:  Finger Food
Component:  core         |    Keywords:             
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 We use "NVR", "build", "package" etc pretty randomly in the names of our
 library methods. We should stick to the terminology here:

https://fedoraproject.org/wiki/Koji#Terminology

So "nvr_to_rpms()" should be more likely "build_to_rpms()". And so on.

The task is to go through the library and fix the terminology where
 needed, especially in the methods' names and their arguments.