K 10
svn:author
V 3
kwm
K 8
svn:date
V 27
2015-03-27T06:51:24.079033Z
K 7
svn:log
V 138
Update libsigc++20 to 2.4.1.

Drop the VERSION PLIST_SUB since both it and API_VERSION are the same value.

Obtained from:	GNOME dev repo

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