nitg & niti: add intern methods `successor` and `predecessor`
authorAlexis Laferrière <alexis.laf@xymus.net>
Thu, 3 Apr 2014 01:22:57 +0000 (21:22 -0400)
committerAlexis Laferrière <alexis.laf@xymus.net>
Thu, 3 Apr 2014 02:10:13 +0000 (22:10 -0400)
Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>


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