Merge pull request #17 from clefeuvre/master

Updated doc, changed width calcul in PH to get less "vertical" graphs
Draw second part of actions
Merge pull request #18 from clefeuvre/master

Cleaned code : suppressed window asking for display mode and redundant inclusions
Draw entire action and arrow heads
Merge branch 'master' of https://github.com/pgroubioinfo/pgrou
Merge pull request #19 from ThomasC44/master

Draw entire GActions, move every elements with the sort moving and draw arrow heads
Superposition Sorts
Fixing decimal separator bug : now GraphViz is forced to use US English numeric standards.
Merge pull request #20 from AurelienHP/master

Fixing decimal separator bug : now GraphViz is forced to use US English ...
Superposition resolu
superposition sorts resolu
Merge branch 'master' of https://github.com/pgroubioinfo/pgrou
Merge pull request #22 from EmnaBenAbdallah/master

Superposition of sorts handled
Debug the way actions are drawn
Update of action while a sort is moved
Merge pull request #23 from ThomasC44/master

Debug action display and move actions while moving a sort