fixes #50
Group interactors added, need to define the families
Add group interactors
Merge branch 'interface' of https://github.com/renoust/TulipPosy into interface

Conflicts:
	d3/Client.js
	d3/TulipPosy.js
Merge branch 'PDP' of https://github.com/renoust/TulipPosy into PDP
changes for family interators
Merge branch 'PDP' of https://github.com/renoust/TulipPosy into PDP
remove junk file
Merge branch 'PDP' into interface

Conflicts:
	d3/Client.js
	d3/TulipPosy.js
merge problems fixed
replacement of jquery-ui accordion by handmade accordion
State engine
Merge branch 'engine' into stateEngine
State
farbtastic color picker replaces jPicker
add:
 - color settings for labels
 - data view (columns can be sorted on click)
 - textfields for tulip algorithms (layout and measure)
creation of different Views
add editablegrid plugin for grid view
small modification
small modification
Merge branch 'interface' into stateEngine

Conflicts:
	d3/Client.js
	d3/Interaction.js
	d3/Interface.js
	d3/TulipPosy.js
	d3/UpdateViews.js
	d3/View.js
	d3/Visualization.js
	d3/css/style.css
	d3/graphDrawing.js
	d3/index.html
changes messages