* Start writing the description for the limit of chebychev expansion in a numerical experiment of wind-driven circulation.
* Modify some codes implementing chebyshev spectral method.

commit 3317f372deee53bb18e0aa1fdd51e38019dea490
Author: Yuta Kawai <ykawai@gfd-dennou.org>
Date:   Sun Feb 9 22:15:29 2014 +0900

    * Modify some routines associated with chevyshev spectral method.

commit 5d55b090130be44e01e010ebc408c2db061d2edf
Author: Yuta Kawai <ykawai@gfd-dennou.org>
Date:   Sat Feb 8 18:14:38 2014 +0900

    * Merge numexp branch to apply some changes in the branch..