From: Michael Orlitzky <michael@orlitzky.com>
Date: Sat, 12 Sep 2009 14:48:25 +0000 (-0400)
Subject: Added the StringUtils module with the is_integer() function.
X-Git-Url: http://gitweb.michael.orlitzky.com/?a=commitdiff_plain;h=75ac117b996561aea48d7c30c2ebdb6db8177c14;hp=75ac117b996561aea48d7c30c2ebdb6db8177c14;p=dead%2Fcensus-tools.git

Added the StringUtils module with the is_integer() function.
Imported StringUtils into SummaryFile1.
Removed the InvalidAreaError, since we need to accept areas of zero.
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