Applied patch from Rob Anderton to fix some binmode and open file issues that regressed.

lib/paperclip/attachment.rb

@@ -67,6 +67,7 @@ module Paperclip
 
       if uploaded_file.is_a?(Paperclip::Attachment)
         uploaded_file = uploaded_file.to_file(:original)
+        close_uploaded_file = uploaded_file.respond_to?(:close)
       end
 
       return nil unless valid_assignment?(uploaded_file)
@@ -93,6 +94,7 @@ module Paperclip
       # Reset the file size if the original file was reprocessed.
       instance_write(:file_size, uploaded_file.size.to_i)
     ensure
+      uploaded_file.close if close_uploaded_file
       validate
     end
 
@@ -212,6 +214,7 @@ module Paperclip
     # the post-process again.
     def reprocess!
       new_original = Tempfile.new("paperclip-reprocess")
+      new_original.binmode
       if old_original = to_file(:original)
         new_original.write( old_original.read )
         new_original.rewind

lib/paperclip/storage.rb

@@ -38,11 +38,11 @@ module Paperclip
       def flush_writes #:nodoc:
         logger.info("[paperclip] Writing files for #{name}")
         @queued_for_write.each do |style, file|
+          file.close
           FileUtils.mkdir_p(File.dirname(path(style)))
           logger.info("[paperclip] -> #{path(style)}")
           FileUtils.mv(file.path, path(style))
           FileUtils.chmod(0644, path(style))
-          file.close
         end
         @queued_for_write = {}
       end

test/iostream_test.rb

@@ -20,7 +20,8 @@ class IOStreamTest < Test::Unit::TestCase
 
       context "and given a String" do
         setup do
-          assert @result = @file.stream_to("/tmp/iostream.string.test")
+          FileUtils.mkdir_p(File.join(ROOT, 'tmp'))
+          assert @result = @file.stream_to(File.join(ROOT, 'tmp', 'iostream.string.test'))
         end
 
         should "return a File" do