Log Message:
* Use lang/ruby/gem.mk instead of misc/rubygems/rubygem.mk.
* Add LICENSE.
* Remove default value of GEM_BUILD.

== MIME::Types 1.16
* Made compatible with Ruby 1.8.6, 1.8.7, and 1.9.1.
* Switched to the 'hoe' gem system and added a lot of build-time tools.
* Updated the MIME types to the list based on the values in the Perl library
  version 1.27. Also updated based on external source information and bug
  reports.
* This is the last planned version of MIME::Types 1.x. Work will be
  starting soon on MIME::Types 2.x with richer data querying mechanisms
  and support for external data sources.