kazu-yamamoto/Mew — pull request #33 by tats (2013-07-02 12:23:58+00:00)
Title: Find a deep part for mew-scan-body

If top-level is Multipart/Mixed, No.1 part is Multipart/Alternative,
and No.1.1 part is Text/Plain, it is not found.

With this patch, No.1.1 part is found to display in Summary.