Log Message:
Update devel/ruby-highline to 1.6.1.

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

== 1.6.1

* Fixed raw_no_echo_mode so that it uses stty -icanon rather than cbreak
  as cbreak does not appear to be the posixly correct argument. It fails
  on Solaris if cbreak is used.
* Fixed an issue that kept Menu from showing the correct choices for
  disambiguation.
* Removed a circular require that kept Ruby 1.9.2 from loading HighLine.
* Fixed a bug that caused infinite looping when wrapping text without spaces.
* Fixed it so that :auto paging accounts for the two lines it adds.
* On JRuby, improved error message about ffi-ncurses.  Before 1.5.3,
  HighLine was silently swallowing error messages when ffi-ncurses gem
  was installed without ncurses present on the system.
* Reverted Aaron Simmons's patch to allow redirecting STDIN on Windows.  This
  is the only way we could find to restore HighLine's character reading to
  working order.