Changes in version 0.1-8 (2/18/2014) * Cleaned up dependencies (moved most to imports)
Changes in version 0.1-7 (8/11/2013) * plot checks now if 0 rules/itemsets are used * scatterplots with a single rule now display correctly * transition from igraph0 to igraph
Changes in version 0.1-6 (5/25/2013) * plot method matrix does not accept custom colors
Changes in version 0.1-5 (3/02/2012) * fixed namespace (imports seriation now)
Changes in version 0.1-4 (11/7/2011) * fixed font family for igraph under windows (is now Arial).
Initial version 0.1-0 (12/17/2010)