[SCM] narray-miss branch, master, updated. debian/1.2.1-1

[Youhei SASAKI]

The following commit has been merged in the master branch:
commit 70daa6a1e1d1106aa2a20ad0d726c670f69ba41e
Merge: bc780af3e8bd11b35b4c357377786e770a39498d 909627580b8ffbc7ab01f7c23fcf7732daa950d7
Author: Youhei SASAKI <uwabami at gfd-dennou.org>
Date:   Tue Dec 28 15:31:01 2010 +0900

    Merge commit 'upstream/1.2.1'


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Additional Ruby Class handling missing value