Refactor Provider Account priority

[ifarkas]

This patchset includes the following changes:

• Provider Account priority is removed
• the score ranking in provider selection previously was based on the Provider Account priority which caused confusion in many situations. With this patch the ranking goes from -100 (lowest) to +100 (highest) and nil value worth 0.
• Weighting strategy is added

[martinpovolny]

I would shorten this function, too verbose for my feeling of "pretty"

+Then /^I should see score "(.*?)" for provider account with label "(.*?)"$/ do |score, provider_account_label|
+  found = false
+  all("tr").each do |tr|
+    if tr.has_content?(provider_account_label) && tr.has_content?(score)
+      found = true
+    end
+  end
+  assert found
+end

step #1:

found = false                                                                   
all("tr").each do |tr|                                                          
  found ||= tr.has_content?(provider_account_label) && tr.has_content?(score)   
end                                                                             
assert found     

step #2:

assert all("tr").detect { |tr| tr.has_content?(provider_account_label) && tr.has_content?(score) }

over all looks good, works, tests pass

ACK and merging it, just consider revisiting the function in question, please

[ifarkas]

@martinpovolny, sure, I will create a new pull request fixing that. Thanks for the review!