rename some config keys to clarify what they are

app/logical/missed_search_service.rb

@@ -6,7 +6,7 @@ class MissedSearchService
 
   def fetch_data
     Cache.get("ms", 1.minute) do
-      url = URI.parse("#{Danbooru.config.report_server}/missed_searches")
+      url = URI.parse("#{Danbooru.config.reportbooru_server}/missed_searches")
       response = ""
       Net::HTTP.start(url.host, url.port, :use_ssl => url.is_a?(URI::HTTPS)) do |http|
         http.read_timeout = 1

app/logical/popular_search_service.rb

@@ -15,7 +15,7 @@ class PopularSearchService
     dates = date.strftime("%Y-%m-%d")
 
     Cache.get("ps-#{scale}-#{dates}", 1.minute) do
-      url = URI.parse("#{Danbooru.config.report_server}/hits/#{scale}?date=#{dates}")
+      url = URI.parse("#{Danbooru.config.reportbooru_server}/hits/#{scale}?date=#{dates}")
       response = ""
       Net::HTTP.start(url.host, url.port, :use_ssl => url.is_a?(URI::HTTPS)) do |http|
         http.read_timeout = 1

app/logical/reports/uploads.rb

@@ -20,7 +20,7 @@ module Reports
 
     def generate_sig
       digest = OpenSSL::Digest.new("sha256")
-      OpenSSL::HMAC.hexdigest(digest, Danbooru.config.shared_remote_key, "#{min_date},#{max_date},#{queries}")
+      OpenSSL::HMAC.hexdigest(digest, Danbooru.config.reportbooru_key, "#{min_date},#{max_date},#{queries}")
     end
   end
 end

app/logical/reports/user_similarity.rb

@@ -24,13 +24,13 @@ module Reports
     end
 
     def fetch_similar_user_ids(endpoint = "user_similarity")
-      return NotImplementedError unless Danbooru.config.report_server
+      return NotImplementedError unless Danbooru.config.reportbooru_server
 
       params = {
-        "key" => Danbooru.config.shared_remote_key,
+        "key" => Danbooru.config.reportbooru_key,
         "user_id" => user_id
       }
-      uri = URI.parse("#{Danbooru.config.report_server}/reports/#{endpoint}")
+      uri = URI.parse("#{Danbooru.config.reportbooru_server}/reports/#{endpoint}")
       uri.query = URI.encode_www_form(params)
 
       Net::HTTP.start(uri.host, uri.port, :use_ssl => uri.is_a?(URI::HTTPS)) do |http|