Update groonga to 4.0.1.

Release 4.0.1 - 2014/03/29
--------------------------

Improvements
^^^^^^^^^^^^

* [doc] Added a link in return value to detailed header description (:doc:`/reference/command/output_format`).
* Supported to inspect vector and object value in JSON load.
  It shows more details about data which is failed to load.
* Added ``adjuster`` option to select command.
  adjuster options accepts following syntax: INDEX_COLUMN @ STRING_LITERAL (* FACTOR).
* Supported :ref:`weight-vector-column`. You need to specify 'COLUMN_VECTOR|WITH_WEIGHT' flags
  to create weight vector column.
* Added missing MIN/MAX macros on SunOS. [GitHub#154] [Patch by Sebastian Wiedenroth]
* Improved recycling garbage data. It suppress to increse database size.
* [doc] Added documentation about GET parameters for :doc:`/reference/executables/groonga-suggest-httpd`.
* [doc] Added documentation about :doc:`/reference/column`.
* [doc] Added documentation about :doc:`/reference/columns/vector`.
* [column_list] Supported to show weight vector column.
* [column_create] Added error check for creating multi column index without WITH_SECTION.
* [httpd] Enabled stub status module (NginxHttpStubStatusModule) for groonga-httpd. [Suggested by Masahiro Nagano]

Fixes
^^^^^

* Fixed a bug that a division overflow caused a fatal error.
  For example, it occurs when you execute 'COLUMN / -1' operation to Int32 or Int64 column. [#2307]
* Fixed a bug that '%' operations performs '/' operations. [#2307]
* [doc] Fixed a wrong documentation about :doc:`reference/commands/column_rename`.
* Fixed the issue that out of bound array element access may occurs. [GitHub#158] [Reported by dcb314]

Thanks
^^^^^^

* nise_nabe
* Sebastian Wiedenroth
* dcb314
drop unwanted patch.
Updated textproc/groonga to 4.0.1
Update ruby-hikidoc to 0.1.0.

* switch to use GEM
* use ruby 1.9 style hash syntax
Add ALTERNATIVES for format-executable.
Updated textproc/ruby-hikidoc to 0.1.0
Use RUBY_SUFFIX instead of RUBY_VER.
Update rcairo to 1.12.9.

Release 1.12.9 (2014-04-05) Kouhei Sutou <kou@cozmixng.org>
===========================================================

Improvements
------------

  * Supported cocoa gem. [Patch by Patrick Hanevold]
  * Made Cairo::Rectangle based on cairo_rectangle_int_t. It improves
    Ruby/GDK3 integration.
  * windows: Dropped binary packages support for Ruby 1.9.3.

Fixes
-----

  * Fixed a bug that Cairo::Context isn't GC-ed without explicit
    Cairo::Context#destroy.
    [ruby-gnome2-devel-en][Reported by Detlef Reichl]

Thanks
------

  * Patrick Hanevold
  * Detlef Reichl
Updated graphics/ruby-rcairo to 1.12.9