Issue_103 Label generation ignores historic properties

The label is created during the XGMML parsing stage and will ignore historic properties (specifically maxSkew/minSkew).

This can cause inconsistencies between the main graph, local graph and properties.

Fixes Issue_103

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Merge pull request #104 from GordonSmith/Issue_103

Issue_103 Label generation ignores historic properties

Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>