rename teardown to close

Fixes #16

Author: jsvd

lib/logstash/outputs/file.rb

@@ -101,8 +101,8 @@ def receive(event)
  end # def receive
 
  public
- def teardown
- @logger.debug("Teardown: closing files")
+ def close
+ @logger.debug("Close: closing files")
  @files.each do |path, fd|
  begin
  fd.close