Bug fix: Bio::Fasta::Report should be autoloaded

 * Bug fix: Bio::Fasta::Report should be autoloaded.
 * Removed useless method Bio::Fasta::Report.parser because
   only the "format10" parser is available for a long time
   and dynamic require is a potential security hole.
 * Removed "require" lines in Bio::Fasta#parse_result.

lib/bio/appl/fasta.rb

@@ -16,7 +16,7 @@ module Bio
 
 class Fasta
 
-  #autoload :Report, 'bio/appl/fasta/format10'
+  autoload :Report, 'bio/appl/fasta/format10'
   #autoload :?????,  'bio/appl/fasta/format6'
 
   # Returns a FASTA factory object (Bio::Fasta).
@@ -66,16 +66,6 @@ def format=(num)
   end
   attr_reader :format
 
-  # Select parser to use ('format6' and 'format10' is acceptable for now)
-  #
-  # This method will import Bio::Fasta::Report class by requiring specified
-  # parser and will be useful when you already have fasta output files and
-  # want to use appropriate Report class for parsing.
-  #
-  def self.parser(parser)
-    require "bio/appl/fasta/#{parser}"
-  end
-
   # Returns a FASTA factory object (Bio::Fasta) to run FASTA search on
   # local computer.
   def self.local(program, db, option = '')
@@ -102,12 +92,6 @@ def query(query)
 
 
   def parse_result(data)
-    case @format
-    when 6
-      require 'bio/appl/fasta/format6'
-    when 10
-      require 'bio/appl/fasta/format10'
-    end
     Report.new(data)
   end