Merge pull request #49 from DustInMonteriggioni/master

Master into Branch-chyb
Merge pull request #50 from DustInMonteriggioni/LC

Lc
Linkage in Relation move, fix bug in twin finding
Merge pull request #51 from DustInMonteriggioni/Branch-chyb

Branch chyb
Merge pull request #52 from DustInMonteriggioni/LC

add
Merge pull request #53 from DustInMonteriggioni/master

Master into LC