Refactored tests. TestCases are now divided by to functionality.
Moved parameters to own class. Added test to 2002 document.
Added new test to 2001 documents.
Improved how summary page is detected.
Generalized table creation to tables with missing borders.
Fixed error on sanitizing layouts.
Improved consistency of interface of LTNetwork.

Points and links are now consistent.
Aligment of tables is now done before splitting them.
Moved some methods from LawConverter to LTNetwork.
Simplified handling of networks in LawConverter.
Added harder constraints on LTNetwork with 3 failing tests.

Constraints are: lines must be horizontal/vertical and lines
must not intersect without a point in the intersection.
Added test for document from 2012.