Refactor based on jekyll-watch clean-up.

https://github.com/jekyll/jekyll-watch/pull/5

lib/jekyll/command.rb

@@ -19,31 +19,6 @@ module Jekyll
         super(base)
       end
 
-      # Paths to ignore for the watch option
-      #
-      # options - A Hash of options passed to the command
-      #
-      # Returns a list of relative paths from source that should be ignored
-      def ignore_paths(options)
-        source      = options['source']
-        destination = options['destination']
-        config_files = Configuration[options].config_files(options)
-        paths = config_files + Array(destination)
-        ignored = []
-
-        source_abs = Pathname.new(source).expand_path
-        paths.each do |p|
-          path_abs = Pathname.new(p).expand_path
-          begin
-            rel_path = path_abs.relative_path_from(source_abs).to_s
-            ignored << Regexp.new(Regexp.escape(rel_path)) unless rel_path.start_with?('../')
-          rescue ArgumentError
-            # Could not find a relative path
-          end
-        end
-        ignored
-      end
-
       # Run Site#process and catch errors
       #
       # site - the Jekyll::Site object

lib/jekyll/commands/build.rb

@@ -64,7 +64,7 @@ module Jekyll
         # Returns nothing.
         def watch(site, options)
           Deprecator.gracefully_require 'jekyll-watch'
-          Jekyll::Commands::Watch.watch(site, options)
+          Jekyll::Watch.watch(options)
         end
 
       end # end of class << self