made namespacing safer

lib/cocoapods/command.rb

@@ -56,7 +56,7 @@ module Pod
     def self.report_error(exception)
       if exception.is_a?(Interrupt)
         puts "[!] Cancelled".red
-        Config.instance.verbose? ? raise : exit(1)
+        Pod::Config.instance.verbose? ? raise : exit(1)
       else
         if ENV['COCOA_PODS_ENV'] != 'development'
           puts UI::ErrorReport.report(exception)

lib/cocoapods/command/list.rb

@@ -48,7 +48,7 @@ module Pod
           dates, groups = {}, {}
           days.each {|d| dates[d] = Time.now - 60 * 60 * 24 * d}
           sets = SourcesManager.all_sets
-          statistics_provider = Config.instance.spec_statistics_provider
+          statistics_provider = Pod::Config.instance.spec_statistics_provider
           creation_dates = statistics_provider.creation_dates(sets)
 
           sets.each do |set|

lib/cocoapods/command/search.rb

@@ -43,7 +43,7 @@ module Pod
           sets.reject!{ |set| !set.specification.available_platforms.map(&:name).include?(:osx) }
         end
 
-        statistics_provider = Config.instance.spec_statistics_provider
+        statistics_provider = Pod::Config.instance.spec_statistics_provider
         sets.each do |set|
           begin
             if @stats