Adjusted snap tolerance to that of JTS
Modified test to show WKTParser works differntly than JTS'.
Attempt to clip the input geometries to have it easier for debugging
The problem occurs when envelope around non noded intersection is exanded by  ~32 units to each side.
#27
handled "null bounds" error when creating an empty shapefile
Fix for #27
refactored code for #28
Point out difference in test
Modification of tests for issue #28
minor fix, added ignore to fixture as this is a problem with the framework #28