* Debug the implementation of Dennou-OGCM through the validation for  a numerical experiment of
  wind-drivern circulation on an Aquaplanet.

* Improve some subroutines to calculate horizontal diffusion and
  surface pressure.

* Update the documentations in which dynamics of zonal-mean wind-drivern circulation on
  an Aquaplanet are described.

commit 077ff1c93cabbb578bc341a2a9f9293ff92c1da6
Author: KAWAI YUTA <ykawai@dennou-k.kugi-mete>
Date:   Wed Jun 18 15:48:41 2014 +0900

    * Modify a ruby script to validiate a numerical experiment of
    wind-drivern circulation on an Aquaplanet.

commit e4412714ae5f358b12205cfdedbfc5ae7d44852e
Author: Yuta Kawai <ykawai@gfd-dennou.org>
Date:   Fri Jun 13 22:37:14 2014 +0900

    * Add some programs to validiate the numerical solution of wind-driven circulation.

commit 286d36f95f8af794035d1b613ab8bc08a6c24fa8
Author: Yuta Kawai <ykawai@gfd-dennou.org>
Date:   Fri Jun 13 21:52:31 2014 +0900

    * Improve the calculation of surface pressure.

commit 364c76da879c3dbc12c77db7185ec0e2d54504d8
Author: Kawai Yuta <ykawai@Kawai-no-MacBook-Air.local>
Date:   Tue May 27 23:04:59 2014 +0900

    * Modify some description of goverment equation for the circulation near equator.

commit 361cbf2b3096f28b4e1e1625bf36fd9c9a928a0e
Author: Yuta Kawai <ykawai@gfd-dennou.org>
Date:   Sat May 24 18:23:06 2014 +0900

    * Revise the document that formulates the wind drivern circulation on aquaplanet configuration
      in order to add new description about the circulation near equator.

commit 344e15cf1f22e8f7b5710076284d301db38d765e
Author: Yuta Kawai <ykawai@gfd-dennou.org>
Date:   Sat May 24 18:22:00 2014 +0900

    * Add a function to calculate the static stability.

commit c1bd89ce209bf16fc4bc7fc7c67211fe38db6445
Author: Yuta Kawai <ykawai@gfd-dennou.org>
Date:   Wed May 14 01:01:35 2014 +0900

    * Change the aruguments to subroutines for calculating the diffusion terms.

commit 5f7e47909fcd23a34c12da33cb18ae273d8f175b
Author: Yuta Kawai <ykawai@gfd-dennou.org>
Date:   Tue May 13 12:04:28 2014 +0900

    * Add a module for the spectral analysis.
    * Change the way to calculate mass stream function.

commit 52e2a1d8c63574f89f40b35ef6610e9970b53974
Author: Yuta Kawai <ykawai@gfd-dennou.org>
Date:   Wed Apr 23 12:27:06 2014 +0900

    * Add some descriptions for resolution and horizontal viscocity comparison.
    * Update a ruby script to generate and collect images for each experiment.

commit 24b78ff8557ff379d69515b45a3b338e817b7f82
Author: Yuta Kawai <ykawai@gfd-dennou.org>
Date:   Mon Apr 21 16:27:55 2014 +0900

    * Add a function for spectral analysis into diagVar.
    * Add source code to specify the thermal boundary condition.

commit 6fa2ff740228eaa4fe75151f586976739b93c544
Author: Yuta Kawai <ykawai@gfd-dennou.org>
Date:   Wed Apr 16 15:03:35 2014 +0900

    * Add some tex files in which asymptotic solution for wind-driven circulation problem in mid-latitude is derived.